Hey guys! Saw the episode and have some questions before I do up all the Wiki stuff.
1. How many kg of firewood did teams need, and how man km did they need to carry it? (I believe they say both in the episode)
2. What kind of food was made in the Loaf Detour?
3. What exactly was that thing they made in the Hair Detour? (Made out of string? hair? What was it dipped in?)
I'm also curious about Team Cyan. Was Son Ngoc sick, or just exhausted? What were they talking/crying about before walking to the Pit Stop?
Thanks a lot! 
1. 15kg each. However, if they said the right password (which they found about in the puzzle task, it's actually the man's name and name of his village), they have 1kg off each (14kg each). I'm not sure about km. I will re-check it. I watch it online last night so may be miss some details. Just remember they had to bring it to the man.
2. It's call Bánh Giầy. There are many kind of Bánh Giầy in Vietnam. This one is a special kind from Hà Nhì people.
3. It's kind of wig, not the real hair. I think it make from string. It's dyed by special herb mixture.
4. Team Cyan: During Wooden task, Mau Thuy took a lot of time to do the rope tie. Son Ngoc Minh wanted to help but Mau Thuy didn't want to so he was mad. From that moment, they rarely talked to each other (that's why in the SeeSaw task, you saw them sitting separately during Purple team's bickering). Before the Pitstop, Son Ngoc Minh apologized Mau Thuy and then water-work which I find so forcely drama and annoying.