If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

I shave every day, but my beard stays the same. What am I?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

Using eight eights and addition only, can you make 1000?

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

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

What is wrong in the below Picture?

What kind of band never plays music?

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?

Can you find the key in the picture below?