I’m tall when I’m young, and I’m short when I’m old. What am I?

Replace the question mark with the correct number in below Picture:

Mr Red Lives in the red house.
Mr Green Lives in the greenhouse.
Mr Yellow Lives in the yellow house.

Who lives in the Whitehouse?

Two guards were on duty outside a barracks. One faced up the road to watch for anyone approaching from the North. The other looked down the road to see if anyone approached from the South. Suddenly one of them said to the other, "Why are you smiling?"

How did he know his companion was smiling?

Can you name four days which start with the letter 'T'?

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

Why did Buffon take the goal with him after every Juventus match?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

It is a 5 letter word if you take away first letter it is something you get from sun, if you remove second letter you will get something to eat, if you remove third letter you get a word you use in pointing at and if you remove the fourth letter you get something to drink. What is it?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?