What's the next in the series?

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

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

Replace the question mark with the correct number below.

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

Solve this tricky question. You are trapped in a forest. With you, you have a gun preloaded with two bullets in it. In front of you, there is a tiger, a leopard and a jaguar.

How do you survive?

Four cars come to a four-way stop, each coming from a different direction. They can’t decide who got there first, so they all go forward at the same time. All 4 cars go, but none crash into each other. How is this possible?

Which letter of the alphabet has the most water?

Decode below rebus
D
N
A
T
S , D

What building has the most stories?