Can you calculate the probability of getting a sum of six when a dice is thrown twice?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

Can you find a seven digit number which describes itself. The first digit is the number of zeros in the number. The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours.

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

Can you decipher the below rebus?

PBLUESAISNUERSES

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

Find the missing letter in the last circle logically in the given below picture.

There was a strange boy who was born before his father. How can this be possible?

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

The host of a game show offers the guest a choice of three doors. Behind one is an 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?