When we see 2 but call 10?

It has five wheels, though often think four, You cannot use it without that one more, You can put things in it, you can strap things on top, You can't find it in the market, but you can still go shop. What is it?

Be active and find the killer in the picture Riddle below.

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

I am five letter word that is under you.
If you remove my 1st letter, then I am over you.
If you remove my 1st and 2nd letters then I am all around you.

Who am I?

How old is your son? asked a man to his neighbour. My son is five times as old as my daughter and my wife is five times as old as my son. I am twice as old as my wife whereas my grandmother, who is celebrating her eighty-first birthday is as old as all of us put together.

How old is the man's son ?

In a university, a professor gave a set of three problems to the three brilliant students of his class. See the image for the questions.

By what process could you make a 'Tea-Table' into food?

In a football game, Christina defeated Teresa by 2 - 0 but no man from either side scored. How can this be possible?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?