If I put in one canary per cage, I have one bird too many. If I put in two canaries per cage, I have one cage too many. How many cages and canaries do I have?

I am green and found in the forest and have needles instead of leaves. What am I?
Hint 1: It can be used for Christmas decorations.
Hint 2: I have a strong, scent that is used in air fresheners.

You bought me for dinner but never eat me. What am I?

I cannot talk, but I always reply when spoken to. What am I?

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

A Scientist was fifty years old in the year 2000 but he was forty years old in the year 2010. How can this be possible?

PS: It has a logical answer.

Remove two matchsticks to make the below equation correct.

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

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?

What can go through glass without breaking it?