I have eight fingers and two thumbs but I do not live. What Am I?

Name the three-letter word that can complete the below words:

A) L O _ _ _ E
B) E D U _ _ _ E
C) _ _ _ E R
D) _ _ _ T L E

What is always in front of you but can’t be seen?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

What do you answer even though it never asks you questions?

I look at you, you look at me, I raise my right, you raise your left. What am I?

If a boy blows 18 bubbles,
Then pops 6 eats 7 and then
He pops 5 and blows 1.
How many are left?

Which English verb becomes past tense just by rearranging the letters?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

It belongs to you, but other people use it more than you do. What is it?