Can you replace the question mark with the correct number?

I cannot talk, but I always reply when spoken to. What am I?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

Why are all black people so quick ?

What does it mean?

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

A boy was driving a car, a girl took a lift from her. She asked his name. The boy said - my name is hidden in my car’s number, find it if you can. After this, she got down Car number was [ WV733N ] Can you guess the name now?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?