PIC: Are you clever enough to solve this fiendishly difficult brain teaser?
Come have a go, if you think you're clever enough...
The one clue we've been given is that the answer is NOT 6.
Can you finish the sequence? When you're ready, tap on the picture to see the correct answer.
If you liked that one, why not try out the world's shortest IQ test to see how smart you really are?