puzzle box

Noun

 * 1) A box that cannot be opened by the usual obvious means, and therefore challenges a person to find the correct way to open it.
 * 2) A cage that can be opened from the inside by means of levers, latches, etc., used to test the learning behaviour of animals.

Translations

 * Chinese:
 * Mandarin: 秘密盒, 神祕寶盒, 機關盒
 * French:
 * German: Himitsu Bako
 * Hungarian: titokdoboz, kirakós doboz, trükkös doboz
 * Japanese: 秘密箱
 * Portuguese: caixa-segredo
 * Russian: шкатулка с секретом


 * Hungarian: problémaketrec, problémadoboz