Tan: Why did $sin$ eat a sandwich?
Cot: Just $cos$!
After seeing this small "joke" made by Tan and Cot, Sin replied:
"Well, I have something better than jokes: riddles! Can you solve this one?"
tzexwx xzy mjb wn ol agl dluDa dphxyZgrgy ti
Tan then said "That seems like a terrible riddle. I'll still solve it though."
Shortly after 7 minutes of thinking, Cot said "Can you at least give us a hint?"
Think this: A fruit left to ___ for almost 2 weeks (but 1 day less) and reversed; French and German; K3, but not K1 and K2 (and certainly not K4). Look for the significant, emphasized word that is the least related to the "others".
Can you help Tan and Cot out?