India, Aug. 11 -- Who does not enjoy a good brain teaser? These quick mental challenges can make us think beyond the obvious and put our wit to the test in surprising ways. If you love solving such puzzles, a new one making the rounds on Facebook might be just the thing to keep you guessing.

(Also read: Brain teaser: How many triangles can you spot that left even the sharpest minds stumped?)

The riddle asks: "Brain test: You can find it only in October and not in any other month. What is it?"

Check out the puzzle here:

The post quickly gained traction, racking up more than 300 comments from curious users trying to crack the puzzle.

Many tried to work it out logically, with one user writing, "It has to be Halloween because that is cel...