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

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

Can you find out which options fits best with the missing column?

I look at you, you look at me I raise my right, you raise your left. What am I?

Before the start of the car race, John and Jacob have the same amount of fuel in their car. With this fuel, John can drive for 4 hours while Jacob can drive five hours.
After a time they realize that the amount of fuel left in John's car is 1/4th of the fuel in Jacob's.

For how long they are racing?

Forwards I am heavy, backward I am not. What am I?

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

What has 13 hearts but no other organs?

Can you discover the missing number in this series?

37, 10, 82
29, 11, 47
96, 15, 87
42, ?, 15