How is the moon similar to a dollar?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

what does the below math rebus puzzle mean?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

What can you catch but never throw?

Transform the word THINK into BRAIN while changing only one letter at a time in a manner that each of the word in the process is a real word!!!

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

A plane crashed between the border of Mexico and America. Where do you bury the survivors?

John is found dead in a bare field. Nobody killed John,
John did not commit suicide.

Inspector Jacob found a bag just a few meters away from John which could save his life. What was in the bag?