What always comes into a house through the keyhole?

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

What word is represented by this rebus?

What runs around the whole yard without moving?

Which is the rope you never skip with?

Identify the 10 differences between the two given pictures.

I have thought of a number that is made up by using all the ten digits just once. Here are a few clues for you to guess my number:

First digits is divisible by 1.
First two digits are divisible by 2.
First three digits are divisible by 3.
First four digits are divisible by 4.
First five digits are divisible by 5.
First six digits are divisible by 6.
First seven digits are divisible by 7.
First eight digits are divisible by 8.
First nine digits are divisible by 9.
The number is divisible by 10.

Can you find out the number ?

What number do you get when you multiply all of the numbers on a telephone's number pad?

Who is that with a neck and no head, two arms and no hands? What is it?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?