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

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Steffi's daughter Jazelle needs to be picked up from school every day.
Steffi asks one of her colleagues to pick up Jazelle from the school. Steffi devised a password system to confirm that Jazelle goes with the correct colleague only.

The password on Monday was SJM16.
The password on Wednesday was TAW39.

What will the password be for Friday?

Why is the longest human nose just 11 inches?

Suppose we lay down two cups in front of you. One of the cups is filled with tea and the other one with coffee. Now we ask you to take a spoonful of tea and mix it with the coffee. At this moment, the coffee cup has a mixture of tea and coffee. You have to take that mixture (spoonful) and add it back to the tea.

Can you now tell if the cup of coffee has more tea or the cup of tea has more coffee?

Using Only Five 5's and any mathematical operator make sum as 37

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

Which flower has two lips?

Prove that the below maths equation is true.

8 + 8 = 91