[priazz]

1. 
R' U' F L2 B F2 U2 L2 R U2 L' B2 D2 B' U L2 B D' U' F D' F2 R' U' F

L’ F U’ B // EO
L U’ L’ D2 F2 L’ R U // DR
L2 F2 R B2 R // HTR
B2 L2 (U2 L2 B2 R2 F2 D2 F2 D2) // 27

sol: L’ F U’ B L U’ L’ D2 F2 L’ R U L2 F2 R B2 R B2 L2 D2 F2 D2 F2 R2 B2 L2 U2 (27)


2.
R' U' F R' L D F2 B2 R2 L' F B' L' D' L2 D' R2 D F2 B2 D' L2 D R' U' F

U L’ B’ // EO
D L2 U’ L2 U R // DR
U’ (R2 D2 F2 D L2 [D) // HTR
(L2 F2 * U2) // 2e2e 18

*: F2 L2 U2 F2 L2 F2 U2] L2 // 8-4
[]: D2 B2 R2 B2 D // -1

sol: U L’ B’ D L2 U’ L2 U R U L2 D2 B2 R2 B2 D L2 D’ F2 D2 R2 (21)


3.
R' U' F D U2 L2 D2 B2 U2 L' D2 B2 L R F D U2 R D2 B F2 D F' R' U' F

(D’ R F) // EO
D2 R U2 D L2 R’ U’ R // DR
U2 R2 * L2 B2 D B2 D’ R2 // 3c 19

*: F2 L’ B’ L F2 L’ B L // 8-1

sol: D2 R U2 D L2 R’ U’ R U2 R2 F2 L’ B’ L F2 L’ B L’ B2 D B2 D’ R2 F’ R’ D (26)

After time limit:

R2 D2 F’ R // EO
D F’ + U2 D B * U B’ // DR
U D F2 D2 // 5e 15

*: B’ D2 F’ B R2 F // 6-3
+: R’ L F2 R L’ U2 // 6-2

sol: R2 D2 F’ R D F’ R’ L F2 R L’ D’ F’ B R2 F U B’ U D F2 D2 (22)

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27, 21, 26(22) = 24.67(23.33)

Comments:
solve 1) I had great time management but could not find anything good. Sebastiano and I found a 23 from one of his skeletons:
L F U' B' // EO
(D2 R U' L D' R) // 322
(F2 L D' L' D2) // 3e3c
(B U R U' F2 U R' U' F2 B') // 10-2, 23

Solve 2) I found the 21 in the first 20 minutes and spent the rest of the time fidgeting with block starts. I found this:
D L2 U // square+pairs
D2 F2 // blocks
D L' B // Eo
It gives a few very short and blocky DR's as continuation and it could have been finished for a 20 but it wasn't easy to find.

Solve 3) I had very bad time management. I wrote down 28 different Eo's and could not check them all in the hour. The 22 was on the second to last on my list but I should have checked it sooner since it has 4 moves and I should have left longer (5 moves) Eo's for later.