All of it.

It's a saw for cutting materials, it has a vertical blade and a motor moves the blade up and down cutting through materials, it is able to make very tight turns when cutting.

Wasgij puzzles are jigsaw puzzles where the image on the box is not the image on the puzzle but just a clue. Wasgij is jigsaw backward.

There are two types of wasgij puzzles: destiny and mystery. In a destiny wasgij you have to guess what the box image is going to look in the future whereas for mystery wasgij you have to guess how the box scene looks seen from one character in the scene.

A person that likes jigsaw puzzles

Science is useful everywhere. Having good knowledege is very importanat as it can benefit you when you need it. Like for example, you are lost in the forest and need food, shelter and water. You will know if you learned that if you are lost in the forest at dusk, the sun would be at the west. If your home is east you can go the opposite way. If you are lost at night , you can follow the north star. You might also need knowledge on poisonous fungi and plants and be alert of edible and inedible stuff.

No, in fact there are very many different "Cuts" of jigsaw puzzle. You can see examples of several (from the major manufacturers) at

http://www.jigsort.co.uk/jigsaw-puzzle-manufacturers.htm.

Did you know that in some parts of Turkey it was illegal to cut boughten jigsaw puzzles? ( it was considered cheating and if you were caught, there were conciquesces.)

-Brittany Campbell

Free online jigsaw puzzles can be played on sites such as Jig Zone, Puzzle Warehouse, Shockwave and Dotty's Virtual Jigsaws. Most sites only require a simple email registration.

You don't mention where you're from, but have you tried Portapuzzle? I've included the link.