Please Help Me Solve These Abbrevations.

[sweetwoman23]

M in a B
W on a U
D in a RA
B in a P
T in the BP
YM for a GWA
S on a D
FO in a P
C in a PIJ
I have these numbers to use ; 36,20, 90, 54, 3 ,21, , 50 , 40, 76, 24
thanks

[scorpiojo]

21 spots on a dice

[scorpiojo]

90 degrees in a right angle

[scorpiojo]

54 cards in a pack including jokers

[scorpiojo]

3 men in a boat

[pixie373]

Men in a boat 3

[scrunge999]

76 trombones in the big parade
20 fluid ounces in a pint

[Captain2]

3 men in a boat

[sir.prize]

76 Trombones in the Big Parade

[TOMMO33]

Three Men in a Boat 76 Trombones in the Big Parade

[sinead]

3 men in a boat

[TOMMO33]

Ouch

[scrunge999]

One wheel on a unicycle

[scorpiojo]

There isn't a number 1

[scorpiojo]

20 fluid ounces in a pint

[scrunge999]

I know... could have been a typo, and there's 2 commas with nothing between so I thought the OP may have missed a number out... but then realised there were 9 ditloids and 10 numbers...

[scorpiojo]

Oh dear...

[scorpiojo]

Courtesy of Grasscarp
24 blackbirds (baked) in a pie