Which is faster, Heat or Cold ? Explain.

What will you call your mother's brother's brother-in-law?

Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()

What has no start, end, or centre?

Can you find the thief by just looking at the picture below?

How do you go from 98 to 720 using just one letter?

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

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?

Replace the question mark with the correct number, given the pair of numbers exhibits a similar relationship?

? : 3839 :: 11 : 1209