ERJ Brainteaser: Sepetmber
1 Sep 2025
Each month, ERJ sets a weekly brainteaser, with questions of varying degrees of difficulty. Readers supplying the most accurate (and stylish) answers are then considered for the prestigious Brainiac of the Month title.
Question 1: Missing number
|
2 |
4 |
10 |
13 |
7 |
|
6 |
22 |
19 |
20 |
1 |
|
3 |
13 |
? |
20 |
9 |
|
2 |
17 |
5 |
4 |
6 |
|
4 |
13 |
17 |
18 |
8 |
Email your answer: correct replies on Friday.
