Here is a fun puzzle to celebrate Mensa Brilliant Day!

The puzzle is the same as the puzzle that Mensans are solving.
Free parking is available around N50 44.260, W001 40.434 for a quick wander to the cache. Enjoy the views of the Isle of Wight, Christchurch Bay and the Purbeck Hills. This area is muggle rich and stealth will probably be needed. Please rehide the cache carefully and ensure that it is properly sealed.
This cache owner is Barberanne
Cache placed with the kind permission of Groundspeak.