A guard is positioned at the one side of the bridge saying ‘A’. His task is to shoot all those who try to leave from ‘A’ to the other side and say ‘B’. He also need to welcome the person who comes from another side ‘B’ to his side ‘A’. The guard comes out of his post every 1 hour and looks down the bridge for any people trying to leave. You are at side ‘A’ and wish to go to another side ‘B’. you also know that it would take 1:45 hr to cross the bridge. How will you cross the bridge?

How could a baby fall out of a twenty-story building onto the ground and live?

Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hand? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.) If you cannot estimate the number then try to guess how long the number would be.

John asked Jack, "The time right now is 7 pm. Can you tell me what will be the time 23, 999, 995 hours later ?"

While Bella does not know the answer, do you ?

By moving just one matchstick, you need to make the below statement true. Can you do it?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

If you paint a brown house white it will become a white house. If the stoplight changes from red to green, then the light is green. So, if you throw a white shirt into the Red Sea, what will it become?