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

You walk into a room and see a bed. On the bed, there are two dogs, five cats, a giraffe, six cows, and a goose. There are also three doves flying above the bed. How many legs are on the floor?

How many sides does a circle have?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?

The owner of a popular clothing store comes up with his own method of pricing items. A vest costs $8, socks cost $10, a tie costs $6, and a blouse costs $12. Using the owner’s method, how much would a pair of underwear cost?

Rearrange the letters in "new door" to make one word.

What goes through cities and fields, but never moves?

I am quite hot but become too cold if you remove the first two letters. What am I?

What runs around the whole yard without moving?