Four Mile Bridge
Puzzler time.
Here it is.
This story is The Bridge of Tom and Ray. Here we go.
In Borneo, there is a bridge connecting two islands constructed of bamboo lashed together with hemp.
It's been used for hundreds of years, pedestrian traffic, vehicular traffic, both directions. It's four miles long.
Now this bridge has a weight limit of 20 tons.
One day, a truck filled with pigs pulls up to the bridge. Officials stop him and let him know they have to weigh the truck, due to the weight limit.
So the truck drives onto the scale. Turns out that with all the pigs, and the driver, this truck weighs exactly 20 tons.
The guy at the other end gets the signal and he stops all other traffic. Everyone has to stop.
The bridge is emptied, and this guy is allowed to drive over the bridge alone.
He is right at the limit, at 20 tons, so he has to drive over completely alone.
As he drives across, a sparrow begins to follow alongside, flying in the air along with the truck.
The sparrow begins to hover over the truck, flapping its wings. When he's a little beyond the halfway point, the sparrow lands on the truck.
What does the driver do at that moment to keep the truck plunging into the water?
Good luck.
