Find the next number in the sequence

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

In the picture given below, can you find out which digit will take place of the question mark?

You are given 16 witch hats. The hats are divided in four different colours – red, blue, green and yellow. Every colour has been assigned to four hats. Now each of the hat will be glued with a label of an arithmetic sign – ‘+’, ‘-‘, ‘x’ or ‘/’. But you can label one sign only once on one colour. In such an arrangement, the hats can be uniquely defined by its colour and symbol.

Can you arrange all the 16 hats in a 4x4 grid in a fashion that no two rows and columns have a repetition of colour or sign?
We have arranged four hats in the below picture to assist you.

What does a man do only once in his lifetime, but women do once a year after they are 29?

If Rajina's daughter is my daughter's mom, who am I to Rajina?

Replace the question mark with the number below given a simple math problem.

What do you answer even though it never asks you questions?

John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do?

But it is quite possible, do you know how?

Can you make a fire with just a single stick?

1. What does:
TIM JOB
represent?

2. What does:
MO_ _
represent?