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

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

Find the next number in the sequence

5 12 24 36 ?

I have a big mouth and I am also quite loud! I am NOT a gossip but I do get involved with everyone's dirty business.

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

Which five letter word can be added at the end of below word to form a
valid word?

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You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

Two friends Smith and Andrew were talking about the bravery of their families. Smith told great stories about his courageous grandfather who fought for Britain in "World War I". Andrew told that his grandfather was so brave that in 1919 just after the war he was honoured with a bravery medal with the words "For our Courageous Soldiers In World War I" embedded into it. Smith knows that his friend is lying. How?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?