[36] Crazy Chest
Loot 10 chests, get a die

[37] Great Luck
Pay 200,000 coins, get a box with random goodies inside
Can include 1-3 Mirage Celestones, 5-10 DicePerfect World Gold Tickets, or 2 Do-All Cards (can be made into Robber or Bully Cards)

[38] Dragon Gate EX
Same as room 25, except little insects run around that can 1 hit kill you, need to avoid both them and the exploding hands, for an easy time hug the walls tightly to avoid the insect patrols

[39] Consequence II
Open 20 chests, get a die
You can change the amount of chests required to complete the challenge, to either 5, 20, or 100 chests
Leave it at 5, otherwise Karma will bite you in the ass

[40] Sadness or Ecstasy
Pay 100,000 coins, open 10 chests, either win 1 coin, or 5,000,000 coins

[41] Squad of Three
Create a squad of 3 players in the same room, or pay 10 Dice Tickets to bypass the challenge

[42] Mystical Messenger
The final Mysterious Chip room, 5 mobs, 60 seconds

[43] Take Down the Demon
Need a squad to kill these mobs, pay X Dice Tickets to bypass the challenge

[44] Bomber Mania
A time bomb is attached to you, must reach room 50 in 10 minutes or less
Talk to the NPC in room 50 to diffuse the bomb

[45] Open, open sesame!
Same as room 6, kill a boss mob (weak, 100 dmg AOE) that has tons of hit points, takes 20-40 minutes depending on class and level, pray you don't hit the previous room and roll a 1

[46] Still not Enough
Same as room 18, get 9 Bully Cards, need 10
Either hope someone comes in and gives you one of theirs, or Town Portal back to room 1 and start over

[47] 100 Seconds, Bring It On!
Stay alive for 100 seconds, same as the previous two 100 second rooms
Mob in the middle does significatly more AOE dmg (impossible for a 80 Archer)
If you're not a Barbarian or Cleric, just die and start over
If you want to try it make sure you have a HP charm, both restoration and HP pots, and possibly damage reduction Perfect World Gold charms, though I'm not sure if the damage is physical or magic