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 has lots of eyes, but can’t see?

Can you identify the hidden rebus in the image below?

What is the difference between a jeweller and a jailer?

John was going on a jungle trip. He asked his wife to pack something to eat, something to drink and something to burn if he feels cold in the jungle. When John opens the backpack he found just one thing in the bag. What was it?

My location can be determined by the below rebus.
So where am i ?

If you had an infinite supply of water and 5-quart and 3-quart pails, how would you measure exactly 4 quarts? What is the least number of steps you need?

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

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

Name a key which is hardest to turn.