If you say my name, I will no longer exist. What am I?

What two things can you never eat for breakfast?

What always comes into a house through the keyhole?

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

Can you find the dog hidden in a group of pandas?

I am first found in caves, now prolific online; I am a depiction, a drawing, a symbol, or sign. I will convey whichever mood you could wish; or for that matter, a fist, flask, or fish. What am I?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

A beggar on the street can make one cigarette out of every 6 cigarette butts he finds. After one whole day of searching and checking public ashtrays the beggar finds a total of 72 cigarette butts. How many cigarettes can he make and smoke from the butts he found?

In the attached figure, you can see a chessboard and two rooks placed on the chess board. What you have to find is the number of squares that do not contain the rooks. How many are there?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?