Please imagine there is a new designed tuna can with a particular cap opening design which requires a little thinking about the way you have to open it. Your friend gives you the can and asks you to open it. After a couple of minutes he returns to you and wants to ask you if you could open it. Which one of the following verbs works in my self-made sentence below? For me, they both mean the same:
Based on dictionary definitions, figure out works here, but in my opinion "grasp" should not sound weird to a native ear.