What is always in front of you but can’t be seen?

Can you find a number that lies one third of the distance between 1/3 and 2/3?

Rumel, A detective who was mere days from cracking an international smuggling ring has suddenly gone missing. While inspecting his last-known location, you find a note:

710 57735 34 5508 51 7718

Currently, there are 3 suspects: Bill, John, and Todd. Can you break the detective's code and find the criminal's name?

Which is faster, Heat or Cold ? Explain.

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.

What is red and smells like blue paint?

What's the only room from which no one can enter or leave

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

A number can be multiplied by multiple of nine
i.e 9 18 27 36 45 ...

and the resulting number consist of only one digit.

Can you identify the number ?