What are the 50th, 63rd and 100th numbers in the sequence below?
4, 5, 8, 8, 9, 9, 12, 13, 13, 13, 17, 18, ...

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

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?

What always comes into a house through the keyhole?

Andrew sees a very rare bird named "Ruppell's vulture". Soon Andrew was dead. Can you explain the mystery, Mr. Sherlock?

Before reading ahead, you must know the fact that only one of the people here is telling the truth.

A says that B is lying.
B says that C is lying.
C says both A and B are lying.

Can you find out who is speaking the truth?

Can you find the 09 errors in the picture below?

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

Why 1729 is a magic number? Answer Logically.

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?