Free images results:

Solve pictures, stock photos and images


Lamp Stock Photo
Author: Coleopter
Sudoku Royalty Free Stock Photo
Author: Smphoto
Jigsaw2 Stock Photos
Author: Pokerman
Puzzle Stock Photo
Author: Httin
Teamwork Royalty Free Stock Image
Author: Httin
Puzzle game Stock Images
Author: Httin

Also, here are some commercial RF-licensed images that match your search criteria:  
Solve Stock Photo
Author: Zcetrt

Explore more commercial options: More Solve Stock Illustrations & Vectors | More Solve Stock Video Footage