You knock a Table over in the library, and suddenly 20 eyes are looking at you.

What do you call a fish without an eye?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

When is the top of a mountain similar to a savings account?

What is the end of everything?

A man had five children. He had $100 with him to give to his children. He decided to start with the youngest child and then give $2 more than each younger child to his next elder child.

For example, if he gives $x to the youngest child, he will give $(x+2) to the next one, $[(x+2) + 2] to the next one and so on.

Can you find out how much did the youngest one receive?

Different lights make me strange by changing me into different sizes. What am I?

You can hear me, but you can't touch or see me.

What am I?

In a classic wine shop, the list of three most popular wines are:
- The cost of 1 French wine bottle: 500$
- The cost of 1 German wine bottle: 100$
- The cost of 20 Dutch wine bottles: 100$

John entered the wine shop and he needs to buy
- All three types of wine bottles.
- Needs to buy Dutch wine bottles in multiples of 20.
- Need to buy 100 wine bottles in total.

John has only 10000$. How many wine bottles of each type, John must buy?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?