How can you make number one disappear by adding something to it?

Which wheel of car does not rotate when you turn your car right?

Why are televisions attracted to people?

You enter your friend's room. He is not in his room. Although you see that on the bed there are two dogs, five cats, two giraffes and three pigs. Also, a couple of chickens and ducks are flying in the room.

Calculate the number of legs standing on the floor.

You are given four tennis balls and asked to arrange those balls in a manner that the distance between each one of them is exactly equal. How will you do it?

What can go up a chimney down, but can’t go down a chimney up?

A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

If you had an infinite supply of water and 5-quart and 3-quart pails, how would you measure exactly 4 quarts? What is the least number of steps you need?

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?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?