What does an Island and the letter T have in common?

Replace the question mark with the correct number below.

An office is divided into 8 cubicles. How many of the cubicles are painted if only 1/8 of the cubicles are painted?

You are trapped in a room with two doors. One leads to certain death and the other leads to freedom. You don't know which is which.
There are two robots guarding the doors. They will let you choose one door but upon doing so you must go through it.
You can, however, ask one robot one question. The problem is one robot always tells the truth, the other always lies and you don't know which is which.
What is the question you ask?

What has a bottom at the top?

I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?

Identify the 10 differences between the two given pictures.

John was piloting a plane behind a car but was never able to overtake it. Why?

When we see 2 but call 10?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?