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

If eleven plus two equals one, what does nine plus five equal?

Which is Odd One Out and why?

4377

3954

9862

8454

9831

A large water tank has two inlet pipes (a large one and a small one) and one outlet pipe. It takes 3 hours to fill the tank with the large inlet pipe. On the other hand, it takes 6 hours to fill the tank with the small inlet pipe. The outlet pipe allows the full tank to be emptied in 9 hours.

What fraction of the tank (initially empty) will be filled in 0.64 hours if all three pipes are in operation? Give your answer to two decimal places (e.g., 0.25, 0.5, or 0.75).

A plane crashed between the border of Mexico and America. Where do you bury the survivors?

A famous swimmer can swim downstream in a lake in exactly 40 minutes with the lake current.
He can swim upstream in that lake in exactly 60 minutes against the lake current.
The length of the lake is 2 km.

How long he can cover the distance of one side at a still lake with no current?

John is a strange liar.

He lies on six days of the week, but on the seventh day, he always tells the truth.

He made the following statements on three successive days:

Day 1: "I lie on Monday and Tuesday."
Day 2: "Today, it"s Thursday, Saturday, or Sunday."
Day 3: "I lie on Wednesday and Friday."

On which day does John tell the truth?

In the picture given below, can you find out which digit will take place of the question mark?

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?