You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

The dirtier I get, the whiter I look. Who am I?

A four-digit number (not beginning with 0) can be represented by ABCD. There is one number such that ABCD=A^B*C^D, where A^B means A raised to the B power. Can you find it?

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?

In a secret society, a buried chamber can be accessed only via a secret password. The password is seven characters long and comprises of just letters and numbers.

You find a code that can help you in cracking the password. The code says "You force heaven to be empty".

Can you deduce the password from that?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

What do you see in the image below

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

Using Only Five 5's and any mathematical operator make sum as 37