What English word has three consecutive double letters?

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?

Prove that twice of ten is the same as twice of eleven.

Do you know who was buried in John's tomb?

How can a man go eight days without sleep?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

What do you see in the image below

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

10 people came into a hotel with 9 rooms and each guest wanted his own room. The bellboy solved this problem.
He asked the tenth guest to wait for a little with the first guest in room number 1. So in the first room, there were two people. The bellboy took the third guest to room number 2, the fourth to number 3, ..., and the ninth guest to room number 8. Then he returned to room number 1 and took the tenth guest to room number 9, still vacant.
How can everybody have his own room?