I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

What is the riddle which can be asked all day with a different correct answer each time.

Count The number of F's in the paragraph below:

"FINISHED FILES ARE THE RESULT OF YEARS OF SCIENTIFIC STUDY COMBINED WITH THE EXPERIENCE OF YEARS"

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

Can you write down eight eights so that they add up to one thousand?

What have one eye but still cannot see?

I have a big mouth and I am also quite loud! I am NOT a gossip but I do get involved with everyone's dirty business.

I know a nine-letter word having only one vowel.
Do you ?

My first is in chocolate but not in ham. My second is in cake and also in jam. My third at tea time is easily found. Altogether, this is a friend who is often around. What is it?

How many times can you subtract the number 5 from 25?