Three trucks appear similar, but only one is shown in a way that fits the stated motion.
The challenge
The riddle asks: “Which of these trucks are driving?”
The key clue is the position of the cargo on each truck. To solve it, compare how the load is oriented and whether that position makes sense if the vehicle is actually moving.
How to check the pattern
Truck A does not fit the motion shown. If the truck were moving forward, the cargo would not simply remain arranged that way without shifting unless some support or restraint were present.
Truck B also fails the same basic test. If it were moving backward, the cargo would be expected to shift or fall unless it were secured, and no such support is given.
That leaves Truck C. Its cargo placement is the only one presented as consistent with forward motion, making it the intended solution to the riddle.
The solution
The correct answer is C.
Truck C is the one driving. The explanation given for the puzzle is that the load is positioned in a way that matches the truck’s motion, while the setups on Trucks A and B would cause the cargo to shift or fall without additional support.
