Find the next number in the sequence

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

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

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?

In the Thar desert, 3 men found a big 24L Jar is full of water. Since there is a shortage of water so they decided to distribute the water among themselves such that they all have equal amounts of it. But they only have a 13L, a 5L and an 11-litre Jar.

How do they do it?

What does Alexander the Great and Winnie the Pooh have in common?

It is always ahead of me yet I can never see it. What is it?

What month of the year has 28 days?

Three ants are sitting at the three corners of an equilateral triangle. Each ant starts randomly picks a direction and starts to move along the edge of the triangle. What is the probability that none of the ants collide?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?