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?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

Which wheel of car does not rotate when you turn your car right?

How far can you walk into the woods?

John has played 50 ODI's and his average is 50. How many runs should he score in his 51st ODI, so that his average score jumps to 51?

2 ladies and 2 girls need to cross a river in a boat big enough for 1 LADY or 2 girls. How do they do it?

The teacher told the student that if he told a lie then he will be expelled from school and if he told the truth then he still is expelled from school.

What can a student say to prevent his being expelled from school?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

What number should come in place of the question mark below?