[porkynator]

1.
Scramble: R' U' F L2 D2 R U2 F2 L D2 U2 F2 L' B U' L B' L2 D2 L' B2 U' R' U' F
Solution: B2 L R F L' F' R' F L U2 R U' L2 R2 F D2 B' D2 F D' B2 U B' U' F U F2 (27)

Spoiler (Click to View)

B2 L * F U2 R //EO (5/5)
U' L2 //2 squares (2/7)
R2 F D2 //3x2x1 (3/10)
B' D2 F D' //Another 3x2x1 (4/14)
B2 U B' U' F U F2 //3c (7/21)

* = R F L' F' R' F L F' (8-2/27)

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

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(F' U L' B' D) //EO (5/5)
(B' L) D2 F2 B R F' R' //DR (8/13)
B U2 //Blocks (2/15)
F' D2 F' D2 F' D2 //More blocks (6/21)
F2 L2 F' L2 F L2 F //Finish (7/28)

3.
Scramble: R' U' F R L2 F L2 F D2 B' U2 F2 R2 B D L2 U F' U2 R U' L2 F R' U' F
Solution: R B2 F L U' F U B' D' B F2 L2 U R2 F2 R2 B2 D2 B2 U' (20)

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Backup solve:
R B2 F L //EO (4/4)
U' F //Simplify (2/6)
U B' D' B //DR (4/10)
U2 R2 U' D' B2 * D U2 F2 U //3e (9/19)
* = B2 R2 F2 U' R2 B2 L2 D' (8-4/23)

But then:
R B2 F L //Same EO (4/4)
U' F U B' D' B //Same DR (6/10)
(U) F2 L2 U //Sub-optimal HTR, starting with B2 would cancel 1 (4/14)
R2 F2 R2 B2 D2 B2 //Finish (6/20)

Optimal after EO

27, 28, 20 = 25.00 the last one saved the mean