No one wants to have it, but if one got it, he does not want to lose it. What is It?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

Identify the next two numbers in this series.

101, 112, 131, 415, 161, 718, ???, ???

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

You walk into an old horror house. It has no power or plumbing. Once inside, you see three doors. Each door has a number on it. Behind each door is a way for you to die. Behind door number one, you die by getting eaten by a lion. Behind door number two, you die by getting murdered. Behind door number three, you die by an electric chair. You can’t turn back, so you have to go through a door. Which door do you go through?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

The centre of the third figure is empty. What digit should fit inside?

An infinite number of mathematicians are standing behind a bar. The first asks the barman for half a pint of beer, the second for a quarter pint, the third an eighth, and so on. How many pints of beer will the barman need to fulfill all mathematicians' wishes?

Find the hidden panda in the image below.

What has many keys but can’t open a single lock?