How many sides does a circle have?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

A person was found dead on a big green land with no trees or buildings around. When the police arrived, they found a piece of rock lying next to him and the man was wearing clothes comprising of red, blue and yellow colours.

Can you tell who the person is and what was the cause of death?

How many letters are in the alphabet?

I have a head like a cat and feet like a cat, but I am not a cat. What am I?

If an electric train is travelling south, then which way is the smoke going?

Why 1729 is a magic number? Answer Logically.

A man started to town with a fox, a goose, and a sack of corn. He came to a stream which he had to cross in a tiny boat. He could only take one across at a time. He could not leave the fox alone with the goose or the goose alone with the corn. How did he get them all safely over the stream?

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

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?