What has a ring but no finger?

What number when divided in half becomes zero?

Different lights make me strange by changing me into different sizes. What am I?

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

Can you decipher the below rebus?

PBLUESAISNUERSES

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

There are forty elephants and they have forty-fore heads. How can this be possible?

A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?

You find yourself in a strange place guarded by two guards.One of the guard always say truth while other always lies.You don't know the identity of the two.You can ask only one question to go out from there. What should you ask?