Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

Name a key which is hardest to turn.

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

A boy was at a carnival and went to a booth where a man said to the boy, "If I write your exact weight on this piece of paper then you have to give me $50, but if I cannot, I will pay you $50." The boy looked around and saw no scale so he agrees, thinking no matter what the carny writes he'll just say he weighs more or less. In the end the boy ended up paying the man $50. How did the man win the bet?

John drives to his office at 20km/hr. After reaching the office, he realizes that today is a holiday. He went back at an average speed of 30km/hr. Discounting the time spent in the stoppage what was the average speed of his journey?

how come the second man dies?

What have one eye but still cannot see?

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

If,

A + B = C
D - C = A
E - B = C

Based on the above equations, find out the answer for:

D + F = ?

A Child was born in Lahore, Pakistan. Still, the child is not a Pakistani citizen. why?