If eleven plus two equals one, what does nine plus five equal?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

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

What word begins and ends with an E, but has only one letter?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

Why 1729 is a magic number? Answer Logically.

A man calls his dog from the opposite side of a river. The dog crosses the river without a bridge or a boat and manages to not get wet. How is this possible?

Before Mount Everest was discovered, what was the highest mountain in the world?

A wooden log balances equally on the scales when weighed with three-quarters of a pound and three-quarters of a wooden log.

Can you calculate the weight of the entire wooden log?