DITLOID EXPERTS! 19 NOHFPH

Not sure about the first one. I thought it might have been 2 Pecks in a Bushel, but, having checked, there are 4 Pecks in a Bushel. But maybe the question setter didn't check.

Number 2 I believe is 5 sixpenses in half a crown (pre decimal coins if you aren't old enough to remember)

Last one is 19 = Name of hit for Paul Hardcastle

thanks a million

2 = Pieces in a Bikini