**Today’s Challenge**

Only one of the following 3-digit numbers is divisible by 3. Which one?

136 139 245 248 353 357 466 469 572 578 680

[Note: If you don’t know the trick on how to work this out, please get in touch.]

**The 7puzzle Challenge**

The playing board of **the 7puzzle game** is a 7-by-7 grid containing 49 different numbers, ranging from **2 **up to **84**.

The 1st & 7th rows of the playing board contain the following fourteen numbers:

2 4 9 11 14 15 22 24 27 30 40 70 72 77

What is the sum of the multiples of 7?

**Make 19 Challenge**

Can you arrive at 19 by inserting 1, 2, 3 and 4 into the gaps on each line?

- (◯+◯)×◯+◯ = 19
- (◯+◯)×◯–◯ = 19
- ◯²+(◯+◯)×◯ = 19

**Answers **can be found **here**.

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