What always comes into a house through the keyhole?

A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

A man is sitting in a bar when a rich man sits next to him. He turns to the rich man and says, “Did you know I know almost every song that has ever existed?”

The rich man laughs. The man then says, “I bet you all the money you have in your wallet that I can sing a genuine song with a lady’s name of your choice in it. The rich man laughs again and says, “OK, how about my daughter’s name, Jamie Armstrong-Miller?” Minutes later, the man collects his cash and the rich man goes home cashless. What song did the man sing?

Its something that each of us devours,
Not just us but birds, beats, trees, and flowers,
Frets iron and nibbles steel,
Toil hard stones to meal,
Exterminates king, collapse town,
And blows the mountains down.

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

Below rebus represent famous DiCaprio movie. Can you name it?

Using eight eights and addition only, can you make 1000?

I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Can you find a five letter word that is left with only two letters if one is removed?