Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

Can you fill the blank with the correct number?

6 30 870 756030 _____

A frog is at the bottom of a 30-meter well. Each day he summons enough energy for one 3-meter leap up the well. Exhausted, he then hangs there for the rest of the day. At night, while he is asleep, he slips 2 meters backwards. How many days does it take him to escape from the well?

I purchased an awesome ice cream cone having 5 different flavour scoops.
Five flavours are pistachio, mint-chip, strawberry, marshmallow, and raspberry

I will give u some clues so that you can figure out the order of flavours from bottom to top.
1. The bottom flavour of the cone has 10 letters.
2. The marshmallow scoop is between the pistachio and the mint-chip scoop.
3. marshmallow is the raspberry scoop but below the mint-chip scoop.

So can you figure out the flavour of ice cream in order from bottom to top?

Why is the Hole below a Lock?

Why is the Hole below a Lock?

By what process could you make a 'Tea-Table' into food?

Jack have ten pairs of black socks, eight pairs of white socks and seven pairs of green socks. Everything is mixed in a draw. As there is no light he were not able to identify the colour of the socks. How many of the socks did he want to take to match one pair

No one wants to have it, but if one got it, he does not want to lose it. What is It?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.