Find the next number in the sequence

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

What country can make you shiver?

Be active and find the killer in the picture Riddle below.

Find out the missing number in the picture attached:

A man fell off a smuggling boat into deep water. He could not swim and he was not wearing anything to keep him afloat. It took 30 minutes for the people on the boat to realize someone was missing. The missing man was rescued two hours later on the return trip. Why didn't he drown? Note:- He didn't know swimming, the sea was deep, and He wasn't holding anything

Two guards were on duty outside a barracks. One faced up the road to watch for anyone approaching from the North. The other looked down the road to see if anyone approached from the South. Suddenly one of them said to the other, "Why are you smiling?"

How did he know his companion was smiling?

81 x 9 = 801. What must you do to make the this equation true?

John is the son of Jacob.
So,
Jacob is the_____of John's father?

There are three boxes of different sizes with three cupcakes inside each of the boxes in Christina's kitchen. At night her daughter wakes up and goes to the kitchen. She opens a box and eats all three cakes.

But in the morning Christina finds out that each box still had three cupcakes. How?

Can you find a number that lies one third of the distance between 1/3 and 2/3?