What has a ring but no finger?

What is the probability of getting five Mondays in a 31-day month?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

I can turn polar bears white.
I can make anyone dance.
I can make everyone cry
I can make your hands clap
I can make you thin.
I can make you smile.
I can make you smile

Can you guess the riddle?

Replace each alphabet with the number (1-9) to make the below equation correct.

AB * C = DE - F = GH / I

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

John: "Hi Teacher, What is your favourite movie ?".
Chemistry Teacher: "Indium Cerium Platinum Iodine Oxygen Nitrogen".
Ten seconds later... John replied I got it.

Do you?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

Can you identify the hidden rebus in the image below?

I am a word of 12 alphabets.

* Alphabets 12, 4, 7, 2, 5 : Eastern beast of burden
* Alphabets 1, 8, 10, 9 are street made famous by Sinclair Lewis.
* Alphabets 11, 3, 6 are past.

On whole it means a person suffering from delusions of greatness.

What Is it ?