HOT OFFERS!

# Bet You Can't Solve Adam Spencer's Numbers Riddle In 60 Seconds

#### This numbers riddle is stumping even the savviest mathematicians.

Pixabay
Bet You Can't Solve Adam Spencer's Numbers Riddle In 60 Seconds

For some people, math comes naturally. For others, not so much. But this number riddle is stumping even the savviest mathematicians. The riddle was created by Adam Spencer, comedian, mathematician, and author of The Number Games.

In his riddle, Spencer wrote down the numbers 1 through 19 out of numerical order.

To solve it, you need to figure out the specific way he ordered the first 14 numbers and finish the riddle by adding the last five.

Here it is:

8, 18, 11, 15, 5, 4, 14, 9, 19, 1, 7, 17, 6, 16, ?, ?, ?, ?, ?

Confused?

Here’s a hint: you don’t actually need to be a mathematician to solve this.

If you’re still stuck, here’s another hint.

Which five numbers are missing? 2, 3, 10, 12, and 13. We just need to figure out which order those should be in. It can’t be numerical since the rest of the riddle is out of order… so, what is it?

As it turns out, all that’s required to solve the puzzle is the ability to spell.

Yes, Spencer ordered the numbers in alphabetical order as they’re spelled.

So, the missing last five numbers would be 10, 13, 3, 12, and 2 in that order.

Did you solve it under 60 seconds?

Up for more puzzle challenges? Try the one dubbed the 'hardest ever' by a university professor.

Source: RD.com

## More in Thought-provoking

### 14 fascinating things that will happen in the next 60 seconds

Get your timer out for this one. A minute goes by pretty quickly. But a whole lot can happen during those 60 seconds. Here are some fascinating things that will happen in the next 60 seconds. Ready? Start timing.

### 6 strangest conspiracy theories about Meghan Markle and Prince Harry

Some of these theories are so crazy that you can’t help but just laugh.

### 32 eerie experiences that defy explanation

Do you believe in a sixth sense? In ghostly apparitions, spirit voices or messages from beyond the grave? Before you decide, have a read of these 32 gripping, real-life experiences.

### 10 strange urban legends that turned out to be true

You’ve probably heard that all legends have a basis in fact. That may not be true. These bizarre urban legends are – or were at least inspired by truth.