Something

Combat
Gold Challenge - Defeat Tztok Jad 10 times
Silver Challenge - Collect 25 Rune Defenders
Bronze Challenge - Solo KQ 5 times
Agility
Gold Challenge - 10k tickets
Silver Challenge - 5k tickets
Bronze Challenge - 2k tickets
Construction
Gold Challenge - 500k xp in 24 hours
Silver Challenge - 300k xp in 24 hours
Bronze Challenge - 150k xp in 24 hours
Cooking
Gold Challenge - Cook 10k fish in 24 hours
Silver Challenge - Cook 8k fish in 24 hours
Bronze Challenge - Cook 5k fish in 24 hours
Crafting
Gold Challenge - Collect 10k Dragon Hides
Silver Challenge - Collect 5k Dragon Hides
Bronze Challenge - Collect 2k Dragon Hides
Farming
Gold Challenge - 300k xp in 24 hours
Silver Challenge - 150k xp in 24 hours
Bronze Challenge - 75k xp in 24 hours
Firemaking
Gold Challenge - Burn 10k logs in a day
Silver Challenge - Burn 8k logs in a day
Bronze Challenge - Burn 5k logs in a day
Fishing
Gold Challenge - Catch 10k Shark
Silver Challenge - Catch 50k Lobsters
Bronze Challenge - Catch 10k Monkfish
Fletching
Gold Challenge - Fletch 20k Yew long bows
Silver Challenge - Make 10k bow strings
Bronze Challenge - Fletch 5k Magic bows
Herblore
Gold Challenge - Collect 500 Sinister Keys
Silver Challenge - 1k of all secondaries
Bronze Challenge - 500 of all secondaries 500 of every herb (except torstol)
Magic
Gold Challenge - Full Infinity
Silver Challenge - Kill the KBD entirely with Magic
Bronze Challenge - 1k of every Pizazz point
Mining
Gold Challenge - Mine 20k Iron ore
Silver Challenge - Mine 5k gold ore
Bronze Challenge - Mine 1k Mithril ore
Prayer
Gold Challenge - Worship/Bury 10k bones in 24 hours
Silver Challenge - Collect 1k of every bone (Regular, Big, Jogre, Baby Drag, Drag)
Bronze Challenge - Kill 8 lvl 149 tzharr unarmed with only prayer (no prayer pots or food allowed)
Ranging
Gold Challenge - All Chompy Hats
Silver Challenge - 5k Range tickets
Bronze Challenge - Kill KBD with only range
Runecrafting
Gold Challenge - Craft 15k Essence in 24 hours
Silver Challenge - Craft 10k Essence in 24 hours
Bronze Challenge - Craft 5k Essence in 24 hours
Slayer
Gold Challenge - Collect all Monster Heads
Silver Challenge - 80k xp in 24hrs
Bronze Challenge -Collect a Full Mystic Set entirely from drops. (Must be all one colour)
Smithing
Gold Challenge - Make 100k Cannon balls
Silver Challenge - Smelt 10k gold ore
Bronze Challenge - Make 1k Mith/Addy bars
Thieving
Gold Challenge - 2M xp in 24 hours
Silver Challenge - 1k Gold Artefacts
Bronze Challenge - 20 sets of Rogue Armour
Woodcutting
Gold Challenge - Cut 5k Mahogany logs
Silver Challenge - Cut 3k Teak logs
Bronze Challenge - Cut 2k Magic logs