FOR the past five minutes the small fingers have been busily working on the pieces of wood. A perfect cube never materializes. The small child in elementary school uniform pulls them apart again. “Hard, ya, little one?” asked the toy stand attendant at the book fair at Istora Senayan, Jakarta, on Sunday two weeks ago.

The wooden shapes that look easy are called Puzzle IQ. It’s not just a toy, it’s an educational toy, made with different