Short logic riddles

Can you arrange four 9's and use of at most 2 math symbols, make the total be 100?

Can you name three consecutive days without using the words Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday

I am a vehicle. I spell the same when you read me forwards as well as backwards. What Am I?

What has a head like a cat, feet like a cat, a tail like a cat, but isn't a cat?

A word I know, Six letters it contains, Subtract just one, And twelve is what remains.

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

If 20 blackbirds are on a fence and you shoot one, how many remain?

A man was driving a black truck. His lights were not on. The moon was not out. A lady was crossing the street. How did the man see her?

I create my lair with earthen string and dispatch my prey with a biting sting. What am I?

You leave home, make three left turns, and return home where you find two men wearing masks. Who are they?