If you are inquisitive and think that everything in this world can be explained by logic, then the riddles in this article are for you. If you need to quickly warm up your brain and wake up, then this article is also for you. We are challenging you to solve each riddle in 7 seconds. Ready, set, go!
如果你是一个充满好奇心的人，并且认为世间所有的事情都可以用逻辑来解释，那么这篇文章中的谜题就是为你量身定做的！如果你需要快速热身，或是清醒一下的话，这篇文章也非常适合你。要求：你需要在7秒内解开每一个谜题。准备好了吗？开始！

1. The murderer was sentenced to death. He must choose one of 3 rooms: in the first one, there are raging fires, the second one is full of killers with loaded guns, and in the third one there are a group lions that have not eaten for 3 years.
凶手被判处死刑。他需要在三个个房间中选择其一进入。第一个房间里是熊熊燃烧的烈火；第二个房间里则满是持枪的杀手；而第三个房间里是一群三年没有吃过东西的狮子。

Question: which of these rooms will be the safest?
问：这三个房间中，哪个房间最安全？

2. Masters who make souvenirs, can put a boat inside of the bottle.
制作纪念品的师傅可以把一艘船放进瓶子里。

Question: can you think of a way to put a whole uncut cucumber in a bottle and not damage the bottle?
问：你能想到一种可以把一整根没有切开过的黄瓜在不破坏瓶子的前提下放进瓶中？

3. Once during breakfast, a girl dropped her ring into a cup full of coffee.
有一次在吃早餐时，一个女孩的戒指掉进了一杯满满的咖啡里。

Question: how did the ring stay dry?
问：戒指是如何保持干燥的？

4. Question: where are there rivers but no water, cities but no buildings, and forests but no trees?
问：哪里有河流却没有水，有城市却没有建筑物，有森林却没有树木？

5. Divide 30 by 1/2 and add 10.
30除以1/2，再加10。

Question: what is the result?
问：答案是多少？

6. The king told his daughters to put 3 identical teapots with the same amount of water on the stove simultaneously. Whoevers water boils faster, that daughter's husband will be the heir of the king. The teapot of the youngest daughter, who did not want to get married at all, was the first to boil.
国王告诉他的女儿们把三个同样的茶壶倒入同等的水同时放在炉子上。谁的水最快烧开，谁的丈夫就可以继承王位。结果第一个先烧开水的确实根本不想结婚的小女儿。

Question: why?
问：这是为什么？

7. It is given to a person three times — first 2 times for free, the third time you'll have to pay for it.
它给你三次机会——前两次是免费的，但第三次你需要自费。

Question: what is it?
问：这是什么？

8. In Turkey, many footwear cleaners offer their services to people walking by for free. However, if they decide to take advantage of the offer, the passers-by themselves pay the cleaners money.
在土耳其，有一群擦鞋匠免费为经过的路人提供擦鞋服务。然而，如果他们决定接受这个免费服务，他们将需要为之付钱。

Question: why?
问：这是为什么？

9. Your surroundings use it more often than you, however, it belongs to you.
你周围的人比你更常用到它，但它是属于你的。

Question: what is it?
问：它是什么？

10. James has spent 3 days in the hospital. He wasn't sick and he wasn't injured, however, he had to be carried when he was leaving the hospital.
詹姆斯在医院呆了三天，他并没有生病，也没有受伤。然而当他出院后，他需要被抬着走。

Question: why?
问：这是为什么？

1. The room with lions because they have already died from hunger a long time ago.
全是狮子的房间，因为很久以前，它们就已经饿死了。

2. Without tearing off the stem, place the cucumber in the bottle while it's still small. Let it grow larger while in the bottle.
不要把茎拨下来，在黄瓜还小的时候，把它放进瓶中。让它在瓶中长大。

3. Coffee was in beans, ground, or instant.
其实是咖啡豆、磨碎的咖啡或是速溶咖啡粉。

4. It's the map of the world.
这是世界地图。

5. 70. Usually people count it this way: 30 : 2 + 10 = 25. But when dividing, the number must be multiplied by an inverted fraction, that is 30 * 2 + 10.
70，通常大家是这么算的30÷2+10=25，但其实是除以2的倒数，也就是：30*2+10=70。

6. The others kept lifting the lid to check if the water was boiling. That's why it took more time for their water to boil.
其他人会时不时得掀开盖子确认水是否烧开了。这就是为什么她们的水需要更长的时间才能烧开。

7. Teeth.
牙齿。

8. They clean one boot for free, and in order not to look like a fool in one polished boot, a passer-by is forced to pay for cleaning the second.
他们会免费擦一只鞋，但是为了避免只有一只鞋干净而像个傻瓜，路人不得不付钱擦另一只鞋。

9. Your name.
你的名字。

10. He had just been born in this hospital.
他刚刚在医院出生。