John was piloting a plane behind a car but was never able to overtake it. Why?

If you say my name, I will no longer exist. What am I?

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

Find the Goldfish below the given Image.

If you go to the movies and you're paying, is it cheaper to take one friend to the movies twice, or two friends to the movies at the same time?

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

Before the start of the car race, John and Jacob have the same amount of fuel in their car. With this fuel, John can drive for 4 hours while Jacob can drive five hours.
After a time they realize that the amount of fuel left in John's car is 1/4th of the fuel in Jacob's.

For how long they are racing?

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?