-2. I examined very carefully and got 4.10.
0. Deadfall, pit, bandit and 2 goblin fighters.
1. Fortress, 1st floor. There is a pre-programmed round room, where you can see rusty armor, rusty helmet and a lot of rats, who eat dead body.
2. I counted 29 (3 + 6 + 20). But it was sent an answer to me 10+20. Let's count. In mine you get one in foster parents' house, second after reading scrap of parchment and third after village is burned down. In fortress you get one in 4th and 8th floor, Hrungnir's 2 speeches, father's speech and end game message. What did I miss?
3. If you open help file and look object directory, then you see, that only items, which weight in grams is bigger than bulk in cubic centimeters, are steel helmet and helmet of detect monsters.
4. Ring. In object directory its weight is given 50 and bulk 30, but actually it is vice versa.
5. It is easy to get 1 point, answering big and medium chest. All chests can consist 100 kg items and if we add their own weight (25 kg and 15 kg respectively), then big chest can weigh up to 125 kg and medium chest up to 115 kg.
By principle, small chest can consist also 100 kg items. But it can contain only 50 liters. That means, you must fill it with items, which weigh 2 kg for each liter. But there is no such items in CotW! Helmets have the biggest density and if you fill small chest with 25 steel helmets, then they weigh altogether 62,5 kg. Add chest’s own weigh 10 kg and small chest cannot weigh more than 72,5 kg.
What then? Large enchanted pack of holding can consist also 100 kg items, but it reports its weigh always 10 kg, no difference, is it full or empty. So this is also false.
The correct item is – surprise-surprise – PURSE! It can consist 100 kg money + its own weigh 0,3 kg = maximum weight 100,3 kg. Of course, it is difficult to collect such large sum of money.
6. Purse again. Every time, when you kill a thief, you will get one.
7. Hidden glyph, which damages HP. No points for answer "hidden glyph"!
8. Gelatinous glob. No points are given for slime!
10. Kobold. Probably a lot of monsters share the same probability to appear, but in 4th floor there is a pre-programmed room with a lot of kobolds and this makes number of kobolds the biggest, since this is the only pre-programmed room in mine.
11. Goblin fighter 2 points, walking corpse 1 point. They have the same probability to appear, but there are a lot of pre-programmed rooms with goblin fighters and none with walking corpses, so number of goblin fighters is slightly bigger.
12. Transmogrify monster and healing.
13. With 125% speed, so 25% faster.
14. You cannot carry shield with two-handed sword.
15. Makes resistant to drain life.
16. Utgardslok. (Clue: 16th floor is his floor.)
17. Trap of animating statues. (Clue: 17th floor is its floor.)
18. Odin. No points are given for his son Thor.
19. Elemental portal. (Clue: 19th floor is its floor.)
20. Like bumerang, it always returns to its thrower.
22. Idun had apples, which made their eater younger.
24. The charge is absorbed by the helm.
25. 27 480.