I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

Which five letter word can be added at the end of below word to form a
valid word?

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Take one out and scratch my head, I am now black but once was red. What am I?

John is 45 years older than his son Jacob. If you find similarities between their ages, both of their ages contain prime numbers as the digits. Also, John's age is the reverse of Jacob's age.

Can you find their ages?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

Solve the below puzzle by replacing the question mark with the correct number.

3 6 12

4 8 16

5 10 ?

You can see it everyday, But cannot touch it at will. What is it?

Can you name some countries which do not have the alphabet 'A' in them?

Rob is taller than Edwin, and Jurgen is shorter than Rob.
Of only one of the following statements, we now certainly know it is correct:

A.Edwin is taller than Jurgen
B.Jurgen is taller than Edwin
C.It cannot be determined if Jurgen or Edwin is the tallest.