Rubik's Cubes. 

These cunning little puzzles have kept us scratching our heads for years.

Turn them, twist them, they're so tricky that only kids with the biggest brains and fastest fingers stand any chance of cracking the case.

But for some Rubik's Cube fans, even that simple challenge isn't enough!

Do you want to know how quick a cube can be solved underwater? 

Or perhaps you want to see how speedy you have to be when you're falling from a plane?

If the answer to those questions is yes, then you've come to the right place!

In fact, we've got some of the most extreme examples of Rubik's Cubing ever seen so if you're looking for new ways to make puzzle-time tough, look no further...