Replace the question mark with the correct number below.

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

A swan sits at the center of a perfectly circular lake. At an edge of the lake stands a ravenous monster waiting to devour the swan. The monster can not enter the water, but it will run around the circumference of the lake to try to catch the swan as soon as it reaches the shore. The monster moves at 4 times the speed of the swan, and it will always move in the direction along the shore that brings it closer to the swan the quickest. Both the swan and the the monster can change directions in an instant.
The swan knows that if it can reach the lake's shore without the monster right on top of it, it can instantly escape into the surrounding forest.

How can the swan successfully escape?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

What is the probability of getting five Mondays in a 31-day month?

Identify the next two numbers in this series.

101, 112, 131, 415, 161, 718, ???, ???

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

Can you find the odd number in the following five choices?

1) 482636
2) 259807
3) 865195
4) 104739
5) 391744

The King of a distant land had heard that Birbal was one of the wisest men in the East and so desired to meet Birbal. He sent Birbal an invitation to visit his country.

In due course, Birbal arrived in the distant kingdom. When he entered the palace he was flabbergasted to find not one but six kings seated there. All looked alike. All were dressed in kingly robes. Who was the real king?

The very next moment he got his answer. Confidently, he approached the king and bowed to him.

How did Birbal know who was the real king?

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