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

1. Where does Easter come from before Valentine's Day?

2. Do you know what is in the middle of Valentine's?

3. What did the lady bee say to the man bee on the occasion of Valentine's Day

Move four matchsticks to the below square to form three squares?

The host of a game show, offers the guest a choice of three doors. Behind one is a expensive car, but behind the other two are goats.
After you have chosen one door, he reveals one of the other two doors behind which is a goat (he wouldn't reveal a car).

Now he gives you the chance to switch to the other unrevealed door or stay at your initial choice. You will then get what is behind that door.

You cannot hear the goats from behind the doors, or in any way know which door has the prize.

Should you stay, or switch, or doesn't it matter?

Count the Triangle in the figure given below:

Solve below popular number sequence
314 159 265 358 979 323 846 ?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

You are confined in a room and given two metal rods. Out of these two rods, one is magnet and the other is the iron rod. They look starkly similar. You don't have any other metal object in the room.

How will you decide which one of those is magnet?

I can be cracked, made, told, and played. What am I?

Can you start the fire using two pieces of wood?