It depends on what type of puzzle you are looking for.
If you are looking for some common jigsaw puzzle, then card board is your solution.
Otherwise there is plastic, rubber, and glass...
Yes, you can find puzzles at most toy stores but selections are small. You would have a better selection of puzzles on the internet, simply search puzzles and you will get pages and pages of websites for puzzles.
protoplasm
Answers to the biology crossword puzzles for Bio 104 can be found in the course books and study materials. It is not given online.
it depends of whats inside , the side and what materials they are made off
Old traditional puzzles were made of wood and were hand cut with a "Jigsaw" which today we call a scroll saw - the reason the pieces were in a grid pattern is the jigsaw had to cut across the puzzle in one cut to be efficient. Today puzzles are made of paper and are die cut - the same die, and thus pattern, can be used for lots of different puzzles.
most of the jigsaw puzzles are made up of cardboard.
The most popular Springbox puzzles are the 1000 piece puzzles that can occupy both adults and children in their spare time. The Springbox puzzles are made in the USA.
A mixture of minerals and other materials
There are many different connect the dot puzzles around the world. Almost any picture can be made from the puzzles, popular ones are animals or pictures of constellations.
Children usually start doing jigsaw puzzles when they are four yeas old. The wooden jigsaw puzzles are made for children who are four years old, or older.
A company called the American Publishing Corp. was located in Watertown and jigsaw puzzles were one of their products, possibly their main product. They made many different kinds of jigsaw puzzles, from cartoon superheroes (I think) to Playboy puzzles to sports puzzles. I remember that they made a Bobby Orr jigsaw puzzle, for example. Most of the puzzles were packaged in cans.
houses in Spain are made of what materials