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

There is a shop where written:
Buy 1 for $1
10 for $2
100 for $3
I needed 999 and still only paid $3. How could this be financially viable for the shop-keeper?

Suppose you are a girl candidate and sitting in an interview. Suddenly the interviewer asks you, 'What if one morning you wake up and find out that you are pregnant?

How will you reply to such a question?

You have two rectangular wires.

Both of them have property that when you light the fire from one end , it will take 60 minutes to get completely burn.

However, they do not burn at consistent speed (i.e it might be possible 1st 20% burn in 50 minutes and 80% can burn in 10 minutes).

So how could you measure 45 minutes ?

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

The answer I give is yes, but what I mean is no. What was the question?

Who is generally closer to the kids, mom or dad?

(it's a funny riddle)

Can you replace the question mark with the correct number in the below table sequence?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?