[porkynator]

Yay I had time to do all 3

3.
Scramble: R' U' F L2 D2 B2 R2 U F2 R2 F2 R2 B L U' R2 D' B' R D2 L D' R' U' F
Solution: U2 F2 B2 L B2 R2 F2 U2 L2 U2 D2 L' U2 B' R' L2 U2 L B' U' R F D' B (24)

(B' D F' R' U) //EO (5/5)
(B L' U2 L2 R B) //DR (6/11)
(U2 L) U2 F2 B2 L //HTR (6/17)
B2 R2 F2 U2 L2 U2 D2 //Finish (7/24)

Also this:
(R U' B F L)
(B D)
D2 F' B' D B' D //DR in 13
F //HTR in 14

The optimal HTR finish gives 23, but I could not find it.
One of them is:
B2 U2 B2 D2 F2 L2 F2 B2 U2 R2

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25, 24, 24 = 24.3