Well, that seems to just about wrap it up - hope you all had as much fun playing as I did creating it.
Here are the solutions:
What connects the following:
1. MacKenzie, Collie, Pilkington, Nicolson
All have peaks in the Skye Cuillin named after them
2. Ben Nevis, Ben Lomond, Ben Hope, Ben Avon
All share their name with a loch
3. Sgoran Dubh Mor, Sgurr Bhreac, Sgurr Dhomhnuill, Meall Horn
All have repeated digit heights in metres (1111,999,888,777)
4. NN773308, NO579702, NX820968, NT149312
All are summits of hills with a Z in their name
5. An Stuc, Sgurr a'Bhac Chaolais, Carn Liath, Cruachan Dearg
All former twin Marilyns, since resurveyed and demoted.
6. Lurg Mhor, Bidein a'Chabair, An Stac, Larg Hill
All are the least climbed hill in their list, according to WH stats.
What comes next in the sequence:
1. Skye, Mull, Arran,
Rum Islands in descending order of highest point
2. 1901, 1923, 1927,
1930 Years of first Munro compleations
3. Ben Nevis, Carn Eighe, Sgurr Alasdair,
Ben More (Crianlarich) Scottish hills in descending order of prominence
4. NN041853 (97m), NM996864 (98m), NG877651 (102m),
NN475332 (106m) Nameless tops in ascending order of prominence
5. Green, Corrieyairack, Finalty,
Monega Scottish hills called "Hill" in ascending height order
6. Loch Ness, Loch Lomond, Loch Morar,
Loch Tay Scottish lochs in order of decreasing volume
Sort the following into four connected groups, and give the connections:
Robertson, Burn, Parker, Corbett (earliest Munroists)
Munro, Graham, Donald, Hewitt (hill categories)
Beck, Gill, Allt, Syke (words for stream)
Wainwright, Poucher, Butterfield, Bennet (guidebook writers).
I have found a site where you can upload the "wall" questions - I'll post a couple more on a separate thread.