Numbers and letters quiz?

[LaughlLovelSmilelx]

I really need help with the last few, i'm stumped!
14 P in a S
13 R in a BD (I think its something about bakers dozen but can't work out R)
10 NTDS
1000 M in a G
3 A in a T
10 B on a TKP

Thanks any help would be appreciated!

 

[Colin]

a bakers dozen is 13 so it would probably be 13 rolls in a bakers dozen.
1000 miligrams in a gram i think.
14 Pounds in a Stone
10 buttons on a telephone key pad (tkp)
3 Angles in a Triangle

 

[Lucky]

1000 milligrams in a gram
3 angles in a triangle

 

[zoot661]

so that leaves

10 Number Ten Downing Street