Dungeoneering puzzle?

Well i'm unsure whether if this is a puzzle or not, but I just started playing the game today, and came up with this puzzle (Assuming so)

I apologise if this has been posted before, this is my first time in posting something I found, I couldn't find anything related to this.

Items required: Tinderbox

EXP gained after lighting burners: 119.5 I'm unsure in which skill; probably Prayer.

You must pick the right herbs, from the list, you can't make a mistake as it prevents it, by dealing you some small damage. So far as I know it only requires the 1 same herb of 4, to place onto the burners.

After the burners are lit, you should right-click on the Sarcophagus and Open it, You should gain some exp; and then the door should be unlocked.

Note: That farming patch you got those herbs from can be used as a farming patch for your crops.