One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

Count the number of lines in the image below ?

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?

A very interesting trivia question for all.

Why do men's shirts have their buttons on the right side and women's have buttons on the left-hand side?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?

Can you name an animal whose killing cannot be performed without spilling your own blood?

Sharpest vision can find the lamp in the desert. Are you one of them? Test your observation skills now!

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?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?