What is next number in the pattern below:

131 517 192 123 ?

The horse jumps over the king.
Strangely there is absolutely no scratch on him.

Can anyone explain, how is this possible?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

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

This is a famous paradox which has caused a great deal of argument and disbelief from many who cannot accept the correct answer. Four balls are placed in a hat. One is white, one is blue and the other two are red. The bag is shaken and someone draws two balls from the hat. He looks at the two balls and announces that at least one of them is red. What are the chances that the other ball he has drawn out is also red?

In the picture given below, can you find out which digit will take place of the question mark?

What is the centre of gravity?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

A mules travels the same distance daily.
I noticed that two of his legs travels 10km and the remaining two travels 12km.
Obviously two mules legs cannot be a 2km ahead of the other 2.

The mules is perfectly normal. So how come this be true ?