Why is it very easy to weigh a fish?

A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.
Where's the father?

A prisoner is told: "If you tell a lie, we will hang you and if you tell the truth, we will shoot you." What did the prisoner say to save himself?

A man died, leaving $10,000,000 for his widow, 5 sons and 4 daughters. Each daughter received an equal amount, each son received twice as much as a daughter, and the widow received three times as much as a son.

How much did the widow receive?

Can you solve below mathematical equation?

2^1234 - 2^1233

I make two people out of one. What am I?

A train leaves from point A for point B at 80 mph. After half an hour, another train leaves from point B for point A at 60 mph.

Which of the trains will be farther from point A when they meet ?

You need to arrange three 7 and mathematical symbols to form number 1?

Can you find a five letter word that is left with only two letters if one is removed?

The answer I give is yes, but what I mean is no. What was the question?