U2 has a concert starting in 17 minutes, and they must cross a darkened catwalk to reach the stage. All four men begin on the same side of the catwalk, and at most two can cross at a time. The band has only one torch (you know, a flashlight), and whoever is crossing the bridge must have the torch with them. Each band member walks at a different speed, and any pair crossing must walk together at the slower man's pace.
Bono takes 1 minute to cross the catwalk.
Edge takes 2 minutes to cross the catwalk.
Adam takes 5 minutes to cross.
Larry takes 10 minutes to cross.
For example: if Bono and Adam cross together, they will take five minutes to cross. If Bono comes back with the torch, he takes only one more minute.
Without throwing the torch or using Bono's superpowers (which, as we all know, include bioluminescence) or any other weird tricks, can all four band members get to the stage in time to start the show?