As you can tell by its name, a brain teaser is a riddle or puzzle, which is designed to challenge your logical thinking skills, while processing speed is a cognitive ability that could be defined as the time it takes a person to do a mental task. Brain teasers, logic puzzles and processing speed tasks are fun!
Sometime from the puzzle statement, it looks like that puzzle is wrong or impossible to solve. However if one thinks out of box, then the puzzle look easy. Here is one such tricky Watermelon Maths Puzzles. Can you solve it?