-1. What comes next: 18, 4, 13, 6?
-2. Charon and Styx are two of the moons of which planet?
-3. How can you physically stand behind your father while he is standing behind you?
-4. Which craft sailed through the Sea of Green and the Sea of Time?
-5. Down, Up, Strange, Bottom and Top. What's missing?
-6. Who released Gunfighter Ballads and Trail Songs in the 1950s?
-7. What is the nine of diamonds also known as?
-8. What word connects a master key, a fictional valet and a method of framing a picture? .
-9. When, in the early 1900s, someone was asked why he was attempting a certain teat. he replied "Because it is there". What was the feat?
-10. Tapis, Minas and Midway Sunset Heavy are well-known classifications of what commodity?
-11. What was Jack Nicklaus' nickname? 
-12. This is the intro to which 1970s hit?

I can't open number 12, not that I expect to know the answer

I thought that might cause troubles, oldbroad - will try and fix it

2. Pluto

3. You and your father are standing back to back

11. The Bear

6. Marty Robbins ??

5. Charm

Excellent selection folks! Methinks it was "Golden Bear" Dan, but hey, you know me - I'm all heart...

People still having trouble accessing #12?

I still can't open it. Maybe it's just me?

7. curse of Scotland

9. Climbing Mount Everest ?

Bernie

Yes …. Question 12 still unavailable to me, as well 🥺

Bernie, manxman - both spot on!

Original problem was that I'd set it to be viewable only to the owner. Changed it to "view to anyone" so should have worked

Might be worth clear the browser cache and trying again...

Still doesn't come up for me. Cleared the cache and everything.

Apologies - will kill #12

1. 10

We can tell how you spend your leisure, Sue!

Don't tell, Rog. Let's see who comes up with the next number.

For those of you who think Rog is a sweet, harmless, Dumbledore-like man.... think again.

8. pass/passe?
As in pass key and Passepartout (but I don't know about framing )

1. Don't tell, Rog. Let's see who comes up with the next number.

15 Pandie

Mad

manxie, you're on fire!

You had it, flotsam !

- passepartout: a method of framing in which a piece of glass is placed over a picture and is affixed to a backing by means of adhesive strips of paper or other material pasted over the edges.