Sfynx

From BoardGameGeek:

Every 25 moons, the mysterious Sfynx open a gateway to their sunken city but only the adventurers able to solve nine riddles before the clepsydra empties will be granted access to its vanished splendors and forgotten knowledge. You must solve 9 riddles by manipulating tiles on a 5x5 grid (called the Antechamber) so that the positions of the tiles match given patterns shown on the Riddle cards. You'll only have a limited amount of turns, so you'll need to make the best use of your actions. You win if you solve the riddles. The board is reconstructed every time you play, so there is a high replayability factor. It has solo rules as well as instructions to adjust difficulty of game.