A windmill. The typical windmill, like the ones Don Quixote chased, have four vanes or sails. You might even say they look like wings. Windmills don’t have emotions, so they can’t laugh or cry. And since they don’t have actual wings, windmills don’t get off the ground. A well-oiled little bugger won’t make a peep.
A deck of cards. You put the cards on the table to play, and you cut the cards to mix them up, but you don’t eat them. Flowers is another possible answer.
A variation of this brain teaser includes laser printers (they were invented by Gary Starkweather) and bulletproof vests (invented by Casimir Zeglen using silk, though modern vests use Kevlar, so it’s halfway right).
There are two tricks to this one. The first is 1 × 0. But it’s mostly there as a distraction. Yes, 1 × 0 is 0, but that doesn’t affect anything else in the equation. The second, far trickier element is that the lines ending with 1 don’t have a + sign next to them. That means they should be combined with the following line.
In A two letters are skipped between each letter. In B three letters are skipped between each letter. In C four letters are skipped between each letter except V, which should be U. The numbers in rows D, E and F follow the same pattern.
I can help you have some fun, Sometimes I get stronger from the sun, If you never give me a break, You will find I never wake, I am optimistic on one side, I can be short, fat, tall or wide, Rectangle and cylinder are two of my shapes, And I can even help you make video tapes, Sometimes you must wait for me to get ready, Just hold on for a few hours and be steady, I can help you get around the mall, Or help you make a telephone call.
A battery. Games and other entertainment devices run on batteries. Batteries can be charged using solar power, which is from the sun. If you use a battery-powered device long enough, the battery will die. Batteries have a plus side and can be all shapes and sizes. They can power scooters and Segways commonly used in malls and your cell phone requires a battery to function.
I stretch as far as a football field, Yet I fit in the palm of your hand. I will make you bleed if you don’t use me often. You put me in your mouth but don’t eat me, Then you throw me away.
Floss. It typically comes in 100 yard packs, which fit easily in your hand. If you don’t floss regularly, your gums will bleed. You use floss in your mouth then throw it away when you’re done.
