Find the next number in the sequence

1, 2, 6, 21, 88, __?

What can you catch but never throw?

What can go through glass without breaking it?

What is black when you buy it, red when you use it, and gray when you throw it away?

I hide my treasure in the ground, my tail is big and fluffy. If you spot me in a tree, please don’t call me scruffy. What am I?

You have a thousand Re. 1 coins with you. You have ten bags with you and you can put any number of coins in each of the bags. The condition is that if someone asks you for any amount between 1 and 1000, you must be able to give that amount by just giving the bag (you are not allowed to open the bag and give coins).

How will you do it?

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

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

Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.

What does this mean?

CCCCCCC