What English word has three consecutive double letters?

In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.

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?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

The owner of a popular clothing store comes up with his own method of pricing items. A vest costs $8, socks cost $10, a tie costs $6, and a blouse costs $12. Using the owner’s method, how much would a pair of underwear cost?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

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 ?

What is black when you buy it, red when you use it, and gray when you throw it away?

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

Can you identify the hidden rebus in the image below?