This puzzle will make your mind sharp and attentive to get solution.
You will get a task and number of chances to get the solution of that task from your intelligence.
Math: Math is more fun and challenging than using a calculator and a stopwatch.
The keypad of numbers are dynamically and randomly generated. It is sort of like being dealt random cards, sometimes you are dealt "good" cards and sometimes not so useful ones. Same with the numbers given to you by the game engine
You may get to the target in 5 seconds one game, and the next game may be more challenging and take 10 minutes.