[porkynator]

1.
Scramble: R' U' F U L' U R2 B U' R2 B' L' D2 F2 D2 B2 R' D2 L' D' R' U' F
Solution: U2 F2 R' D2 R F R F2 R B2 R2 D2 L U2 F2 B2 R2 D2 U2 F2 D2 B' D' F2 L U B2 (27)

Spoiler (Click to View)

(B2 U' L' F2 D) //EO (5/5)
(B) //4-2 (1/6)
U2 F2 R' D2 R F //DR (6/12)
R F2 R B2 R2 D2 L //HTR (7/19)
U2 F2 B2 R2 D2 U2 F2 D2 //Finish (8/27)

A better finish with a similar HTR (found with my computer program):
R F2 L' F2 L2 U2 R' //Similar HTR (6/19)
D2 L2 F2 D2 F2 B2 //Finish (6-1/24)

2.
Scramble: R' U' F D2 U2 B2 L' B2 F2 L2 F2 U2 F2 D' L' D2 B' F2 U' R F' R' U' R' U' F
Solution: F L2 F L2 F L2 U2 F L2 R2 B' D2 F' D' F' U2 B2 L2 B' R' D B2 L' F (24)

Spoiler (Click to View)

(F' L B2 D' R) //EO (5/5)
(B L2 B2 U2 F D) //DR (6/11)
(F * L2 B' L2 B' L2 B') //4e4x (7/18)
* = D2 B M2 B' D2 (6/24)

3.
Scramble: R' U' F U B R' D' R2 B2 D' U2 R2 U R2 L' F' R2 B R U2 F' R' U' F
Solution (no time limit): R D2 L F' L' U L2 D' F2 U L' U2 L2 B2 R2 D2 F2 D2 F2 R2 U2 F2 D' R2 L2 (25)

Spoiler (Click to View)

I finished this one a few minutes after the hour

R D2 L F' //EO (4/4)
L' //4-2 (1/5)
U L2 D' F2 U L //DR (6/11)
(R2 L2 D) //HTR (3/14)
B2 [2e2e] U2 F2 B2 //3e2e2e (4/18)

[2e2e] = L2 [3e] B2 U2 B2 [s2] L2 U2 B2 U2 (8-4/22)
[3e]  = L2 B2 [s1] R2 D2 L2 F2 R2 U2 (8-4/26)
[s1] = [s2] = M2 (-1/25)


I had also found this DR:
R' B' U L'
(U F2 B2 D L2 D' B')
But I missed the easy finish:
R2 D L2
F2
U L2 U2 R2 U

27, 24, DNF(25) = DNF(25.3)