Can it be possible to build a house that has all its four walls facing towards the South?

Why is the Hole below a Lock?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

Which is the correct shadow of the bird?

Three people are in a room. Ronni looks at the Nile. The Nile looks at Senthil. Ronni is married but Senthil is not married. At any point, is a married person looking at an unmarried person? Yes, No or Cannot be determined.

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

James bond was pushed out of an aeroplane without any parachute.
He survived, How come?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?

What is full of holes but still holds water?