Riddle Bloon

The Riddle Bloon is a bloon that spawns at the beginning of the path and that has different weaknesses every time it comes. When it appears on the screen, the game pauses for ten seconds and a riddle pops up. The answer to the riddle is the bloon's weakness (which may be, for example: certain types of attacks, road spikes, or pineapples). Hitting it with whatever its weakness is destroys it (regardless of the amount of damage the attack would ordinarily do).