Tricky Math Riddles: The brain needs regular exercise to function well, and nothing stimulates it like solving riddles, puzzles, and brain teasers. These are fun and easy-to-do things that can work ...

We apply the BODMAS rule (B – Brackets, O – Order of powers or roots, D – Division, M – Multiplication A – Addition, and S – Subtraction). First, multiply the 1 x 0 in the third line which gives 0.