How many sides does a circle have?

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?

Do You See It?

Begin with a word, five letters to my name,
Remove the first and last but I am the same
Take out my middle and still, I remain.
What word am I?

In an interview, a boy was asked an unusual question 'How two persons sitting with a table in between them can't see each other?' He was unable to reply. Can you?

Which Burger Is Different in below image?

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

What demands an answer, but asks no questions

I am white when I am dirty, and black when I am clean. What am I?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?