What word is pronounced the same if you take away four of its five letters?

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?

Who has married many women but was never married?

Can you divide the below-given shape into four equal and identical pieces?

Can you write down eight eights so that they add up to one thousand?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

Can you find the ages of a son, father and grandfather based on the following facts?
The sum of the ages of grandfather, father and son is 140 years.
The age of the son in months is the same as the grandfather in years.
The age of the son in days is the same as the father in weeks.

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

What does this mathematical rebus means ?

Who is generally closer to the kids, mom or dad?

(it's a funny riddle)