What always comes into a house through the keyhole?

John drives to his office at 20km/hr. After reaching the office, he realizes that today is a holiday. He went back at an average speed of 30km/hr. Discounting the time spent in the stoppage what was the average speed of his journey?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

How can you drop a raw egg from a height onto a concrete floor without cracking it?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Mr Red Lives in the red house.
Mr Green Lives in the greenhouse.
Mr Yellow Lives in the yellow house.

Who lives in the Whitehouse?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

Which is the correct shadow of the bird?

Can you identify the hidden rebus in the image below?

People put me on the table and cut me but do not eat me. What am I?