logic puzzles or brain teasers
If you mean a puzzle that's just a picture, cut into pieces, that's a jigsaw puzzle. If you mean one where you have pictures and maybe some letters with + and - signs, that's a rebus.
None that I ever heard of.But there are people who solve problems.
Euglena may be called a biological puzzle because they have characteristics of both animals and plants but do not fit into either category.
a tangram