They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

See the given image carefully. What you have to do is move the blue checkers in the position of the black checkers and vice versa. You are only allowed to move the checker to an adjacent empty space. Do it in the least possible moves.

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

How can you tell a raw egg from a hard-boiled egg?

A sundial has the fewest moving parts of any timepiece. Which has the most?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

Two trains start at the same time, one from Bangalore to Mysore and the other from Mysore to Bangalore. if they arrive at their destinations one hour and four hours respectively after passing one another, how much faster is one train running than the other?

If you say my name, I will no longer exist. What am I?

Considering the below equation:

V + II - VI = 10
IV - X + VIII = 20
IV - VII + VI = 30

Then, I + II + III = ?

Why is it against the law for a man living in Delhi to be buried in Mumbai?