There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

I have 50 feet long of cloth, I need to create 50 handkerchiefs each size of 1 foot. I take one minute to cut a 1-foot handkerchief. So how long will it take to cut 50 handkerchiefs?

What question can you never answer yes to?

Spot what is wrong here in below Picture?

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

One absent-minded ancient philosopher forgot to wind up his only clock in the house. He had no radio, TV, telephone, internet, or any other means for telling time. So he travelled on foot to his friend's place a few miles down the straight desert road. He stayed at his friend's house for the night and when he came back home, he knew how to set his clock. How did he know?

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