If a wheel has 54 spokes, how many spaces are there between the spokes?

Our product and our sum always give the same answer. Who are we?

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

How can you write nineteen in a manner that if we take out one, it becomes twenty?

Which English verb becomes past tense just by rearranging the letters?

A bomb exploded in a room full of married couples and no one died. How?

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

A non-stop marathon is the shared favourite sport of three brothers.

*The oldest one is fat and short and trudges slowly on.
*The middle brother's tall and slim and keeps a steady pace.
*The youngest runs just like the wind, speeding through the race.

"He is young in years, we let him run!" the other two brothers explained, "'because though he is surely number one, he is second, in a way." Why is it?

Who always enjoys poor health?

In the city of Brain Teasers, 5% of people do not list their phone numbers. Now if we select random 100 people from the phone directory, then how many people selected will have unlisted phone numbers?