[porkynator]

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

Spoiler (Click to View)

D F R2 L B //EO (5/5)
L' U R //Simplify 3-1 (3/8)
U' R U' R //DR (4/12)
F2 L2 F2 U' R2 D U B2 U D2 //FIN (10/22)

I also had these interesting blocks:
D B' F' U
L2 F U' F
Possible continuation: (U2 B' U' R U) //2e2e2c2c in 13

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

Spoiler (Click to View)

(R' U F' R) //EO (4/4)
U' R2 [c] B //3 squares (3/7)
F D' B2 F U' F' //3e3c (6/13)

[c] = U' F U B U' F' [e] U B' (8-2/19)
[e] = R' L F2 R L' U2 (6-1/24)

After the first 7 moves there is an interesting DR setup:
F' //Simplify 3-1 (1/8)
Possible continuation: (D2 L2 U' B' U B') has a 4 move HTR on inverse.
Another one: U L2 U D F' U F' has solved corners.

One possible linear optimal finish which I can't make any sense of:
D' L2 B U F2 U' D' R2 F' R2 D' B U R2 F2 (15/22)

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

Spoiler (Click to View)

B F2 U' //EO + square (3/3)
(F' R B L B2 L') //DR (6/9)
F' B2 D2 //Blocks (3/12)
B' R2 * D2 B' D2 //3 pairs (5/17)

* = L F L' D2 L F' L' D2 (8-2/23)

I missed the optimal finish (after "Blocks") only by 1 move:
B L B' R B2 L' B R B' D2 (10)
It was hard, but findable. I am satisfied with my solve though

22, 24, 23 = 23.00
great result, still can't compete with Alex ahah