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

A prisoner is told: "If you tell a lie, we will hang you and if you tell the truth, we will shoot you." What did the prisoner say to save himself?

In a fruit store, there was a unique weighing machine that was made to weigh only cherries and strawberries as they were priced the same.

Other fruits like watermelons or mango had different machines as they were expensive.

A man successfully buys watermelons at the price of cherries. How?

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see it?

Can you count the number of lines in the below picture?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.

When it is alive we sing, when it is dead we clap our hands. What is it?

Can you make four (4) nines (9) equal 100?