Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

Given below is simple addition with a defined pattern pattern:
7 + 7 = 2
8 + 8 = 4
8 + 5 = 1
6 + 9 = 3
10 + 11 = 9

Can you analyze the pattern and find out the answer for:

4 + 9 = ?

You want to boil a two-minute egg. If you only have a three-minute timer (hourglass), a four-minute timer and a five-minute timer, how can you boil the egg for only two minutes?

Why do Chinese men eat more rice than Japanese men do ?

A bus driver was heading down a street in Mexico. He went right past a stop sign without stopping, he turned left where there was a "no left turn" sign, and he went the wrong way on a one-way street. Then he went on the left side of the road past a cop car. Still - he didn't break any traffic laws. Why not?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

Can you count the number of triangles in the picture below?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

The chance of Mr John winning the lottery is 10%. All participants lined up and Mr John is 4th in the row. The first three participants lose the lottery.

What is the chance of Mr John now?