Struggling with a few of these, they are all modes of transportation -
20. �1 in time four wheeler (8,7) 35. Mix two together (7) (don't think it's caravan as I have that for another answer) 36. Result has no little drink mixed up(7) 38. Fish on wood (10) 40. Everyone surrounded by good luck (7) 48. A note to top HM (6)