[porkynator]

1.
Scramble: R' U' F L' U' L2 F2 L2 D U F2 D L2 U2 B2 F L R2 F' R B L2 U B R' U' F
Solution: U2 R2 D2 L B2 L' F2 L B2 L' B2 L2 D' L' R F2 U2 D F' U R2 U2 (22)

Spoiler (Click to View)

Backup solution (~20 minutes):
(U2 R2 U' F) //EO (4/4)
(D' U2 F2 R' L D) //DR (6/10)
(L2 F2 B2 * D2 R2 U2) //3c, why not (6/16)
* = F2 L B2 L' F2 L B2 L' (8-2/22)

Then I found some HTRs in 11 and 12 on normal, but I could find anything better than 22:
L2 U' L R / U2 L2 F2 D U2 B' / U (11)
L2 U' L' R / F2 D U F2 U B' / U (11)
L2 U L R / U2 L2 F2 B2 D U2 B' / U (12)
L2 U L' R / F2 B2 D U F2 U B' / U (12)

In fact there were some 21s from the first two HTRs. For example:

L2 U' L R
U2 L2 F2 D U2 B'
U
L2 F2 D2 L2 B2 D2 F2 D2 L2 B2

Not too hard, but also not obvious.

2.
Scramble: R' U' F D' R2 U' L2 D2 L2 D L2 B2 U' L D2 B R' F' L2 U B D' R' U' R' U' F
Solution: B2 U2 R2 L2 F D F2 L2 F' R2 F2 U2 F R2 B2 U2 R2 B2 L2 B2 L2 D2 L2 D' R' D2 L2 B (28)

Spoiler (Click to View)

(B' L2 D2 R) //EO (4/4)
(D) B2 U2 R2 L2 F D //DR (7/11)
F2 L2 F' R2 F2 U2 F //HTR (7/18)
R2 B2 U2 R2 B2 L2 B2 L2 D2 L2 //Finish (10/28)

Bad

3.
Scramble: R' U' F U F2 B L U' D' F U' R2 D2 L2 F2 U B2 R' U2 B' D R' U' F
Solution: L2 B L' D2 L' R2 F2 L2 R2 D2 F2 D2 F U2 D2 B L2 F' R' U F' D B (23)

Spoiler (Click to View)

(B' D' F U') //EO (4/4)
(R ) L2 B L' D2 L' //DR (6/10)
(F L2 B' U2 D2 F') //HTR (6/16)
(D2 F2 D2 R2 L2 F2 R2) //Finish (7/23)

22, 28, 23 = 24.3