In a science lab, a petri dish hosts a healthy colony of yeast for an experiment. Now every minute, all the yeast cells divide into two. At noon, there was just a single cell of yeast and at 1:22, the Petri dish was half full. Can you calculate when the dish will be full of yeast?

What's a single-digit number with no value?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

A bomb exploded in a room full of married couples and no one died. How?

What is the next number in this matchsticks series riddle?

You are playing as white and given four rooks to checkmate the black king in four moves with the following rules 1. You can place one rook every move and ensure the black king should be in check position.2. After four moves the black king should be in the checkmate position.

Why is the Hole below a Lock?

A mules travels the same distance daily.
I noticed that two of his legs travels 10km and the remaining two travels 12km.
Obviously two mules legs cannot be a 2km ahead of the other 2.

The mules is perfectly normal. So how come this be true ?

What has no start, end, or centre?

What shoe company does this rebus represent?