What is so fragile that saying its name breaks it?

Which of the following words don't belong in the group and why?
CORSET, COSTER, SECTOR, ESCORT, COURTS

There are 2 cops parked along a one-way street looking for traffic violations. They spot a taxi driver going in the wrong direction, yet they do nothing.

Why?

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

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

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

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

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What has 88 keys?

I have a mouth but I don't eat.
I have a bank but have no money.
I have a bed but i dont sleep.
I wave but have no hands.

Who Am I ?

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