The Little ant seems to be always confused. Do you know why?

How can you drop a raw egg from a height onto a concrete floor without cracking it?

Which country gets ill every time?

What 5-letter word typed in all capital letters can be read the same upside down?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

Which letter of the alphabet has the most water?

Intelligence Agency need to break the vault but the problem is that they are not able to break the vault.

On the vault, a text is written as:

31 11 33 33 43 45
21 25
31 24 11 31 51 41

To Break the code Intelligence Agency brings a mathematician named Joseph.
Minutes later he deciphers the code.

Whats the code?

The following sentence is false. The preceding sentence is true.
Are these two sentences true or false?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

You throw me out when you want to use me and you take me in when you don't want to use me.

Who Am I?