Replace the question mark with the correct number in below Picture:

You Are Highly Attentive If You Can Spot A Hat In This Bathroom In 9 Seconds!

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?

When can we add 2 to 11 and get 1 as the correct answer?

One night, a man runs away from home. He turns left and keeps running. After some time he turns left again and keeps running. Later, he turns left one more time and runs back home—but when he gets home, he finds a man in a mask. Who was the man in the mask?

Next Number in the Series,

5, 16, 49, 104, ?

What does Alexander the Great and Winnie the Pooh have in common?

In the addition below, all digits have been replaced by letters. Equal letters represent equal digits and different letters represent different digits.
ABCABA
BBDCAA
ABEABB
ABDBAA
------- +
AAFGBDH
What does the complete addition look like in digits?

Why is a river so rich ?

Look at the picture and find out which square is not linked with any of the other squares.