What is the difference between a jeweller and a jailer?

Find the next number in the series.
1 10 24 43 67 ?

Can you find out the next digit in the following series ?

0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?

I am under you when I am whole.
I shift above you if you remove the first letter.
I come all around you if you remove the second as well.

Can you tell me who I am?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

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?

I am soft and cuddly that soothe your heart. But, If you pick my last name I am going to tear you all apart. Who am I?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

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