The property used on the 100 gates level 25 is a clock, and you have to do here is to tilt the phone to gear out of the upper left so touched XII, V, and VII. As you can see the number of instructions and arrows on the lower left.
Step-by-step explanation of the 100 gates level 25:
First make the cog hit the XII so it spins clockwise.
Next make the cog hit the V so it spins clockwise.
Finally make the cog hit the VII so it spins counter-clockwise.
Touch right middle white circle to open the door.
Now continue to the 100 Gates Level 26 Explanation, or back to the 100 Gates Level 24 Explanation