Using Only Five 5's and any mathematical operator make sum as 37

The doctor prescribed you to take one pill from the bottle every half an hour. The bottle is now left with only three pills.

How long do you think you have before you run out of pills?

A sundial has the fewest moving parts of any timepiece. Which has the most?

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title

People put me on the table and cut me but do not eat me. What am I?

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

The first person saw the bridge step on it and crossed,
the second person saw the bridge did not step on it but crossed,
the third person did not see the bridge did not step on it but crossed.
Who are these people?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?