what does this below rebus represent identXQQQQQME

What has a bottom at the top?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

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

I know there are two methods by using three time the same number with a plus(+) operator , you can make sum as 60.

One of them is 20+20+20.

whats the other way ?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

Suppose that you are trapped on the surface of a frozen lake. The surface is so smooth and ideal that there is no friction at all. You cant make any grip on the ice and no wind is blowing to help you out. You have just a mobile phone with you which has got no reception disabling you to call for help.

How will you plan your escape before you freeze to death on the frozen lake?

Why is the longest human nose just 11 inches?

The horse jumps over the king.
Strangely there is absolutely no scratch on him.

Can anyone explain, how is this possible?

A 3 digit number is such that it's unit digit is equal to the product of the other two digits which are prime. Also, the difference between it's reverse and itself is 396.

What is the sum of the three digits?