You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

If a wheel has 54 spokes, how many spaces are there between the spokes?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

Outside a massage parlour, there is a board that reads
"I only massage those who do not massage themselves."

Reading the above statement, does the masseur massage himself?

The dirtier I get, the whiter I look. Who am I?

A 52% bias toss for head using the 51% tail bias coin was done to obtain a fair result.

Can you find how bias is the floor in this case?

Which number should replace the question mark?

Find the Odd One Out?
84129
32418
47632
36119
67626
72927

Check out the number list below and find what number comes next in the sequence.

111 , 113 , 117 , 119 , 123 , 137 , ?