"The problem? What kind of problem would make even the cunning devils helpless? Listening to Roger's words, the saint Sarana couldn't help frowning, her face full of disbelief. And Archmage Ian's face was also a little puzzled.

Although they are in a hostile position, under the long-term confrontation, the major forces of the Elia continent have enough understanding of the devil and the devil, and among them, the cunning of the devil and the strength of the devil have been recognized.

Moreover, it is said that the magical knowledge acquired by the first magicians came from those cunning devils. Therefore, for a long time, the Church of the Gods was fully wanted by magicians across the continent. It wasn't until the strong rise of the Tower of the Nine Rings that the current magicians completely abandoned many bad habits, and the status of magicians was finally recognized by the major forces.

Even so, the Tower of the Nine Rings and the Church of the Gods still contain many mysteries left by the devils, and no one has been able to solve them so far.

So, neither the Saint Sarana nor the Grand Magus Ian believed that Roger could ask any difficult questions that even a cunning devil could withstand.

"Your Excellency Child of Nature, I believe you should know that puzzles without answers cannot be used to construct magic seals!" Archmage Ian reminded solemnly.

"Of course I know that." Roger raised his eyebrows, and the evil smile on his face became more and more obvious, "These three questions are indeed difficult questions with accurate answers. However, even if the devils know the real answers, they will probably not be able to unlock the magic seal I designed. ”

The Virgin Sarana and the Archmage Ian couldn't help but glance at each other, each being able to see the curiosity in the other's eyes.

"Can you elaborate on that?" The Saintess Sarana asked directly, while the Archmage Ian and the Desperate Knight Geralt and others pricked up their ears.

Obviously, everyone is full of curiosity about these three problems.

"Absolutely." Roger smiled and nodded.

Such an inquiry. Apparently inevitable. It is unlikely that Saint Sarana would have agreed to allow Roger to design the magic seal without knowing the content of these puzzles.

After all, to accomplish this task, everyone present must be prepared to sacrifice.

"Let's start with the simplest one." A wicked smile hung on Roger's face again, "This problem just needs to say a sentence in a special language according to the rhythm accurately. ”

"Huh?"

The brows of the saint Sarana and the others were furrowed: what is the difficulty of this problem?

"Ahem!" Clearing his throat, Roger glanced at everyone. With a wicked smile, he said, "This is what I want to say......"

"Sixty-six-year-old man Lu built sixty-six buildings, bought sixty-six baskets of oil, raised sixty-six cows, and planted sixty-six weeping willow ......"

Roger spoke a long ...... in Chinese very directly. Tongue twisters.

This long tongue twister is a combination of dozens of tongue twisters, and even if Roger himself had to slow down and speak slowly, he would inevitably make several mistakes.

By the time Roger finished singing this tongue twister, which took more than ten minutes to be recited, the faces of the saint Sarana and the others were a little more painful.

After Roger began to read this tongue twister, the saint Sarana and the others, who did not take this tongue twister seriously, tried to read it after Roger. And then...... Without exception, they all bit their tongues.

"Yes...... What......" Covering her mouth, the Saint Sarana said with a sullen and slurred expression. After Roger recited the language she had never heard of, the Saint Sarana was the first to follow Roger. Every caster is inevitably trying to learn this unknown magical language that can elicit a response from the elements of magic.

The condition of the Holy Maiden Sarana is still good, as the Holy Maiden of Dawn, even if she bites her tongue, she can heal her tongue through divine magic. And the great mage Ian and the others, who bit harder, were tragic, and they could only wait for the Holy Maiden Sarana to recover and help them heal.

While the Holy Maiden Sarana was healing their tongues. Roger explained the "conundrum" with a wicked smile: "I'm sure everyone hears it, this is a language that has never appeared on this continent of Elia before. And the passage I just sang. It is a sentence pattern called tongue twister, which is used by children to exercise their tongues. ”

"The difficulty with this puzzle is that in order to complete it, you need to learn this language called 'Hanyu' first!" Roger put away the evil smile on his face and said seriously, "With the power of the demon gods and the demon lords. It is not difficult to gain knowledge about the language. After all, now in the kingdom of Oaks, quite a few people have learned this language. ”

What Roger didn't say was that he had learned "Chinese" now. Most of them are just children who have mastered common words.

"But just having the knowledge of the language and being able to simulate a similar sound in a general tone is not going to work! You have to know exactly what each character means! Roger continued solemnly, completely ignoring the eyes of the saint Sarana and the others who were full of meanings such as "you are the devil" and "it's terrible".

"Then, on that basis, the tongue twister, which takes up to ten minutes to read, must be read word by word within the time limit." Speaking of this, Roger laughed evilly again, "In order to increase the difficulty, the creature that wants to solve this puzzle will need to read a different tongue twister every time it tries to break the magic seal!" ”

The Saint Salana and the others didn't know what to say. However, even though the difficulty of the puzzle had broken through the sky, Roger still didn't think it was difficult enough.

"Because the devils and demons can obtain a good voice and a flexible tongue by transforming themselves, and then fully master the Chinese language through learning, so, on the basis of the first two, I also add a third requirement." Roger grinned at the Saint Sarana and the others, and the Saint Sarana and the others trembled, "To pronounce this tongue twister, you must read it according to the melody of a song!" ”

What Roger didn't say was that he had a bad taste and decided to use the melody of the Hallelujah chorus as the melody for the tongue twister. Let the devils and demons recite tongue twisters with the melody of praise to God. It's fun to think about.

Moreover, the devils are very cunning, but they have never heard of a devil with artistic talent.

With these requirements, this seemingly simple problem has actually become a problem that can be done theoretically, but it may be very little possible in practice.

Wait until Roger finishes speaking. After a long time, the saint Sarana and the others were looking at him with a "perverted" look.

After calming down, the Saintess Sarana said with a puzzled face, "I believe that this simplest problem is enough to stump most demons, let alone demons who only have muscles in their heads. However, with the strength of those demon gods, there may still be demon gods who can do what you want. So, your other two puzzles won't be of the same type, right? ”

"Of course not." Roger grinned again, but the kind smile made the saint Sarana and them subconsciously shake their bodies.

"This second conundrum. It's a math problem. Roger said calmly, but in the eyes of the Holy Maiden Sarana and the others, it was as if two short horns had grown on his head.

"Here's the question." Roger said very solemnly, "There is a man named Goldbach, who came up with the conjecture that 'any even number greater than 2 can be written as the sum of two prime numbers'!" This conjecture has not yet been proved, but a great mathematician named Chen Jingrun has proved one of the theorems closest to this conjecture, that any even number is the sum of the product of a prime number and a number of no more than two primes! ”

"And the second problem is, please verify this Chan theorem called 1+2!" Roger said with a serious face.

"Gollum."

Including the always elegant Virgin Sarana. Everyone swallowed a mouthful of saliva, making the sound of saliva unusually loud.

Everyone looked at each other with some embarrassment. But no one spoke.

After a long while, Geralt, the Desperate Knight, sighed and said slowly, "Obviously, I know every word you say, but why, when these words are combined, I can't understand them at all?" ”

Wiping the cold sweat that broke out on his head. Archmage Ian smiled wryly and said, "I understand this question perfectly. However, although some people have already come up with the accurate answer to this so-called 1+2, I still feel that I don't know where to start. ”

The Holy Maiden Sarana also shook her head and said with a wry smile: "Although there are many scholars in the church, but. I believe that in another thousand years, I am afraid that few people will be able to prove this so-called 1+2. And for the devils, this second question is definitely dumbfounded. ”

Due to the threat of demonic plagues, although there is a profession of scholars on the continent of Elia, there is definitely no scholar who is proficient in mathematics to prove such a profound mathematical problem.

Roger just smiled and shook his head, this question was also a difficult problem that he knew the answer and knew what to do, but he couldn't prove it. In the same way, Roger did not believe that there could be such a strong mathematician among the devils.

Devil mathematician? It's funny.

While imagining the expressions of the devils when they saw this problem, Roger continued to talk about the last question: "This last problem is a physics problem. ”

"Physics?"

The eyes of the saint Sarana and the others were full of confusion: what is that?

"The so-called physics is actually a discipline that studies the real world." Roger scratched his chin and skipped the explanation of "physics", "and the third problem is the uncertainty principle based on a physical constant called Planck's constant......"

"Suppose that the emission and absorption of electromagnetic waves are not continuous, but are carried out one by one, and such an energy is called an energy pon, and each energy subon is equal to hν, ν is the frequency of the radiated electromagnetic wave, and h is a constant, which is called Planck's constant. The uncertainty principle is that the uncertainty of the position of the particle× the uncertainty of the velocity of the particle× the mass of the particle≥ Planck's constant. Roger said calmly, completely ignoring the entanglement of the Holy Maiden Sarana and the others, "The third problem is to verify this uncertainty principle!" ”

Again, Roger doesn't think that any of the devils know physics enough to test a principle based on quantum mechanics.

Shaking her head, Saint Sarana's face had become as white as Geralt, the Desperate Knight. She waved her hand to stop Roger from continuing, and said with some weakness: "Okay, we have understood, none of your three problems can be solved by the devil, so let's use these three problems to set up a magic seal when the time comes." ”

Looking at the other people who also had a serious IQ on their faces, the Holy Maiden Sarana sighed and waved to the Seraphic Angel Michael: "Let's all gather our troops as fast as possible, the faster the better!" We must fight back against hell as soon as possible. ”

With that, the Holy Maiden Sarana fled and rode away on the Holy Dragon Cezel. After Geralt and the others looked at Roger, the desperate knight also left quickly.

It could be seen that everyone was afraid of the three difficult problems that Roger had mentioned.

Prince Robin, whose face was full of confusion, shook his head, gave up thinking further, and instead rushed to the position of the eldest princess Ekarina with Roger.

"I say! Uncle! Attacking hell is such a dangerous mission, don't you go there? Roger said to Prince Robin very seriously.

"Nope." Prince Robin shook his head with a wry smile, "You can also see that even in the Dragon Knights, we are all more or less ostracized. And before in the coalition army, the position of our elven forces was also very delicate, except for the Tower of the Nine Rings and the mercenary kingdom, the rest of the forces also rejected our elves a little. Therefore, in order to ensure the future of the elven race, I must not back down from this battle. ”

"It's you, you don't have to take any chances." Before Roger could speak, Prince Robin continued, "As the king of the Oaks Kingdom, you really don't need to take risks. ”

"Uncle, you've decided to go to hell, how can I back down?" Roger shook his head and said calmly, "Moreover, the magic seal based on those three puzzles is only something I can set up." ”

Speaking of those three questions, Prince Robin's face turned a little paler: "Okay, okay, don't mention those three questions again, really!" I wish I had never heard those three questions......"

Looking at Prince Robin with a depressed face, Roger couldn't help but laugh out loud. (To be continued.) )