Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

While preparing the table for dinner, wife came up with an idea to tease his mathematician husband. She asked her husband to pick nine toothpicks and make ten without breaking any toothpick.

The husband was also smart and did it within seconds. How ?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

When we see 2 but call 10?

What has no start, end, or centre?

I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?

A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

There is a box in which distinct numbered balls have been kept. You have to pick two balls randomly from the lot.

If someone is offering you a 2 to 1 odds that the numbers will be relatively prime, for example
If the balls you picked had the numbers 6 and 13, you lose $1.
If the balls you picked had the numbers 5 and 25, you win $2.

Will you accept that bet?

There is a box full of marbles,
all but two are blue,
all but two are green,
and all but two are red.

How many marbles are in the box?