Thanks for your suggestion JUNKMAN. I was thinking along these lines but thought castor oil came from a plant rather than a tree. Still if a bush plant grows high enough it becomes a tree I suppose.
Hi Minoru,
Now this is a complete longshot for 2)..Acer
Ace can be high or low in cards + R 18th letter of the alplhabet. Only thing I can come up with.
Val.