Puzzles on the internet are some of the most popular places people end up spending their time because they are so fun and nobody will know if you get them wrong or not!

Some puzzles are able to measure your color perception, or your reaction time, or even your IQ to an extent, but this puzzle measures how good you are at finding patterns in numbers, and it actually a very tough one to crack.

**Method 1.) **The trick was posted on June 10, and displays four numbers with a blank space at the end, and you must figure out what number goes in that last space.

The numbers go as follows: 32, 45, 60, 77 _?

This puzzle is quite difficult because it factors in a way of thinking about the numbers that many other puzzles don’t employ, as well as the fact that their are two different ways to arrive at the correct answer. To read how each one of the methods will get you to the correct end point, read on.

You will find that the last number is 96. You can find this by recognizing that 32 is the first number, and 32 + 13 is equal to 45. Then you can see that 45 + 15 is equal to 60, and 60+ 17 is equal to 77.

This means that the numbers are treated as a recursive sequence, where the value in the previous slot is taken into account and an odd number is added to it.