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

A man started to town with a fox, a goose, and a sack of corn. He came to a stream which he had to cross in a tiny boat. He could only take one across at a time. He could not leave the fox alone with the goose or the goose alone with the corn. How did he get them all safely over the stream?

What has one eye, but can’t see?

If your uncle’s sister is not your aunt, what relation is she to you?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

Kareena is older than Bipasha. Bipasha is younger than Karishma and younger than Katrina. Katrina is older than Kareena and Alonso, who are older than Karishma.If Alonso and Kareena are twins, who's oldest?

My grandson is about as many days as my son in weeks, and my grandson is as many months as I am in years. My grandson, my son and I together are 120 years. Can you tell me my age in years ?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?