The two longest down entries in the puzzle are 4D, [Seminal protest song written at a Greenwich Village cafe], which solves to BLOWIN IN THE WIND, and 14D, [Refuse to sully oneself], which is TAKE THE ...

Roula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter.

(Also read: You've got a genius-level IQ if you can figure out the total number of ducks in this tricky brain teaser) Ducks dilemma: Another puzzle leaves users guessing Previously, the same user ...

The challenge here is to count the number of watermelons in the picture. Test your attention to detail with this brain teaser puzzle. Your time starts now! Look at the image and study it carefully.