There are 10 squares in the figure. Move 3 matchsticks to create 17 squares. Squares don't have to be equal in size?
Here 17 squares are- (1) ABCD, (2) GHIJ, (3) STUR, (4) CELM, (5) EFKL, (6) FKZJ, (7) KZWX, (8) LKXY, (9) MNYL, (10) NOPY, (11) PQXY, (12) QRWX, (13) CNXF, (14) MOQK, (15) EYWJ, (16) LPRZ, (17) CORJ
Move 4 matchsticks to create 5 triangles, the triangles don't have to be equal in size.
Move 2 match sticks to create 2 squares. The squares don't have to be equal in size.
Move 3 matchsticks to create 2 rhombuses. (also known as diamonds) The 2 rhombuses must be equal in size.
There are 3 rectangles of size 2X1 in the layout above. They are ABDC, EGLJ and FHMK.
Move 3 matchsticks to create FOUR equal rectangles each of size 2X1.