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

What begins with T, ends with T, and has T in it?

When monkey rotate the gear, which mark will be hit 1 or 2 ?

What breaks yet never falls, and what falls yet never breaks?

Why is the Hole below a Lock?

You can see three almost identical images below. Can you spot the odd one out from them?

Two guards were guarding the camp.Guard-1 was looking towards the south to make sure no threat is coming from the road.Guard-2 was looking at the north to make sure no threat is coming from the top. Suddenly Guard-1 ask the Guard-2 why he is smiling?How Guard-1 knows that Guard-2 is smiling?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

You’ll find me on Mercury, Earth, Mars, Jupiter, Saturn, and Uranus. But never Neptune, or Venus. What am I?