One of 14 great puzzles. Catch the poisonous numbers before they pollute the environment. Download now!

In this game, numbers fall from the top of the screen to the bottom. You need to intercept the multiples of the target number before they hit the ground. If a multiple hits the ground, the environment will become polluted, and all your cows will turn green. If, however, you intercept a number that isn't a multiple of the target number, you'll pollute the air, and the cows will also become green. Game Over!

Sounds easy enough right? Well, remembering your 4 times table might not be too much of a stretch, but get to the second level... You'll find that working out whether 136 is a multiple of 17 before all your cows get poisoned is a touch harder... There are three levels in all, and if you can complete them all, you're doing better than most of us here!

Other Puzzles in TLS Brain Training