Quite hard riddles
1221 Brawl Riddle Compilation - Level 3
A Maths Puzzle: Euler Trail and Solution
HOW COLOR BLIND PEOPLE SEE THE WORLD
Best Riddle! (when you know the solution!)
Mario Party 2 - Mystery Land (20 turns, 2 players, Hard CPU, 1 epic fail)
Funny Riddles - 24 - Sugar Kidzz
Batman Arkham Knight - All Riddler Riddles - Miagani Island
Die hard 3 : Jugs Problem
Guess WHAT AM I ? Riddles Trivia Quiz, Word Guessing Game
Girl Doesn't Understand Riddle
Rebus Puzzles: Hard
Match Riddle (86-98=12)
Batman: Arkham City - Riddles - The Bowery
10 Riddles That Will BLOW YOUR MIND
Can A 12 Year Old Answer These Riddles?!
Can you solve the river crossing riddle? - Lisa Winer
RIDDLES: YOU CAN NEVER SOLVE THESE!
Some quite good riddles
10 riddles really popular in the United States.Top 10 brain teasers with answers
Can You Solve This?
Can you solve the prisoner hat riddle? - Alex Gendler
Other for quite hard riddles:
embrionyc not quite forgotten i just don't quite get it hello i miss you quite terribly lyrics quite acceptable mary mary quite contrary quite safe synonym not quite awake not quite asleep skyfall not quite human download not quite human dvd