How about this for one trap:
A large, empty room. As they enter and walk across the floor to the other doorway, the floor behind them begins to crumble slowly, revealing a large pit about 30 feet down with large spikes scattered everywhere. As they run to the other side, the door disappears. In its place there are 5 levers in a row. In order to stop this collapsing floor, all they have to do is wait. It stops once it gets to around where they are standing, and then the door will reappear. However, pulling any lever speeds up the floor, but pulling the middle one causes the ceiling to begin to slowly move down. The only thing they can do to stop that ceiling is to have the center, 4th from the left, and 5th from the right in the down position and the other two in the up position.
Or would that be too much?
A large, empty room. As they enter and walk across the floor to the other doorway, the floor behind them begins to crumble slowly, revealing a large pit about 30 feet down with large spikes scattered everywhere. As they run to the other side, the door disappears. In its place there are 5 levers in a row. In order to stop this collapsing floor, all they have to do is wait. It stops once it gets to around where they are standing, and then the door will reappear. However, pulling any lever speeds up the floor, but pulling the middle one causes the ceiling to begin to slowly move down. The only thing they can do to stop that ceiling is to have the center, 4th from the left, and 5th from the right in the down position and the other two in the up position.
Or would that be too much?