The 3 caterpillars at the top are identical, they each have 5 dots and 1 flower.
3 Identical caterpillars summed up equals 21.
The caterpillars each equal 7.
Another caterpillar, identical to the previous ones, plus two identical clocks equals 19.
The clocks each equal 6.
Since each clock's hour hand is at 6, we can infer that the value of clock is equal to the number pointed at by its hour hand.
1 Flower plus another identical clock plus another identical caterpillar equals 15.
Therefore, a flower equals 2.
Since all previous caterpillars were worth 7, and had 1 flower, and 5 dots, we can infer that a caterpillar without a flower would be equal to the number of dots on its body.
Therefore, a caterpillar with 6 dots would be equal to 6.
2 flowers stacked one on top of the other would be equal to 4.
A clock with the hour hand pointed to 5 would be equal to 5.
15 is the correct answer.
Your are all braindead faggots.