PUZZLE 1
Try to place a spiral thing in ? (see spiral in the desk)
Press C A B E in order (prounounce Gave)

PUZZLE 2A
The Big Hand must be 5 and the small hand must be 3
Of course it must be daylight saving time ends. Go Back. Now you can see the clock weights telling the clue.
501 on the number wheel not the front mirror.

PUZZLE 2B
Try to figure out the number in order. BRBR (Look for Valves (Not above the door)
The Code starts from DL UR DR UL
Input the code including the 5th ones from Puzzle 2A (7 3 6 2)
Get the key and place it in the key drawing

Puzzle 3
See something if the painting moves. (easy?!?)
Try to input the correct tool on one of these planks.
Red + Blue tool
Orange + Light Blue tool
Yellow + Cyan tool