Below, you will find the lyrics for Can You Solve The Bridge Riddle? by Alex Gendler.
Taking that internship in a remote mountain lab
Might not have been the best idea
Pulling that lever with the skull symbol just to see what it did
Probably wasn't so smart, either
But now is not the time for regrets
Because you need to get away from these mutant zombies fast
With you are the janitor, the lab assistant and the old professor
You've gotten a head-start, but there's only one way to safety
Across an old rope bridge spanning a massive gorge
You can dash across in a minute
While the lab assistant takes two minutes
The janitor is a bit slower and needs five minutes
And the professor takes a whole ten minutes
Holding onto the ropes every step of the way
By the professor's calculations
The zombies will catch up to you in just over 17 minutes
So you only have that much time
To get everyone across and cut the ropes
Unfortunately, the bridge can only hold two people at a time
To make matters worse
It's so dark out that you can barely see
And the old lantern you grabbed on your way
Only illuminates a tiny area
Can you figure out a way to have everyone escape in time?
Remember: no more than two people can cross the bridge together
Anyone crossing must either hold the lantern
Or stay right next to it
And any of you can safely wait in the dark
On either side of the gorge
Most importantly, everyone must be safely across
Before the zombies arrive
Otherwise, the first zombie could step on the bridge
While people are still on it
Finally, there are no tricks to use here
You can't swing across
Use the bridge as a raft
Or befriend the zombies
At first it might seem like no matter what you do
You're just a minute or two short of time
But there is a way
The key is to minimize the time wasted by the two slowest people
By having them cross together
And because you'll need to make a couple of return trips
With the lantern
You'll want to have the fastest people available to do so
So, you and the lab assistant
Quickly run across with the lantern
Though you have to slow down a bit to match her pace
After two minutes, both of you are across
And you, as the quickest, run back with the lantern
Only three minutes have passed
So far, so good
Now comes the hard part
The professor and the janitor take the lantern and cross together
This takes them ten minutes
Since the janitor has to slow down for the old professor
Who keeps muttering
That he probably shouldn't have given the zombies night vision
By the time they're across
There are only four minutes left
And you're still stuck on the wrong side of the bridge
But remember
The lab assistant has been waiting on the other side
And she's the second fastest of the group
So she grabs the lantern from the professor
And runs back across to you
Now with only two minutes left
The two of you make the final crossing
As you step on the far side of the gorge
You cut the ropes and collapse the bridge behind you
Just in the nick of time
Maybe next summer, you'll just stick to the library