I start and end with 500 and carry a 5 in my heart. But I require the first letter and the first number to be complete. I am the name of a King.

Who am I ?

It can't be seen, can't be felt, can't be heard, and can't be smelt.
It lies behind stars and under hills, And empty holes it fills.
It comes first and follows after, Ends life, and kills laughter.
What is it?

Can you replace the question mark with the correct letter?

6 + 6 + 6 = N
7 + 7 + 7 = E
8 + 8 + 8 = R
0 + 0 + 0 = ?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

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

Identify Me

Hint1: I am a god
Hint 2: I am a planet
Hint 3: measurer of heat

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

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

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

Who always enjoys poor health?