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

While going to your grandmother's house, you counted Twenty houses on the right side. While returning back to your home, you counted Twenty houses on the left side.

How many houses are there between your home and your grandmother's home?

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

Which is the correct shadow of the bird?

Make a sentence consisting of three words that have the whole alphabet.

What can go through glass without breaking it?

Our product and our sum always give the same answer. Who are we?

In a classic wine shop, the list of three most popular wines are:
- The cost of 1 French wine bottle: 500$
- The cost of 1 German wine bottle: 100$
- The cost of 20 Dutch wine bottles: 100$

John entered the wine shop and he needs to buy
- All three types of wine bottles.
- Needs to buy Dutch wine bottles in multiples of 20.
- Need to buy 100 wine bottles in total.

John has only 10000$. How many wine bottles of each type, John must buy?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

What is the next number in this series?

4,12,84,3612....