I

Question 1

IA

Answer 1

U2 R D2 R’ U2 R D2 R’

Question 2

IB

Answer 2

U R D2 R’ U’ R D2 R’

Question 3

ID

Answer 3

U’ R D2 R’ U R D2 R’

Question 4

IE

Answer 4

L’ U2 L D L’ U2 L D’

Question 5

IF

Answer 5

x D’ R’ U2 R D R’ U2 l

Question 6

IG

Answer 6

z’ R’2 U R D2 R’ U’ R D2 R z

Question 7

IJ

Answer 7

R D’ R U’ R’ D2 R U R’ D’ R’

Question 8

IK

Answer 8

r D2 L’ U2 L D2 L’ U2 x’

Question 9

IL

Answer 9

r D2 L’ U L D2 L’ U’ x’

Question 10

IM

Answer 10

L’ U2 L D’ L’ U2 L D

Question 11

IN

Answer 11

U R U’ R’ D R U2 R’ D’ R U’ R’ U’

Question 12

IP

Answer 12

x D R’ U2 R D’ R’ U2 l

Question 13

IQ

Answer 13

L’ U2 L D2 L’ U2 L D2

Question 14

IS

Answer 14

U2 R2 D2 R’ U2 R D2 R’ U2 R’ U2

Question 15

IT

Answer 15

D R’ D’ R U R’ D2 R U’ R’ D’ R D’

Question 16

IU

Answer 16

x D2 R’ U2 R D2 R’ U2 R x’

Question 17

IW

Answer 17

U’ R’ D2 R’ U R D2 R’ U’ R2 U

Question 18

IX

Answer 18

U R2 U L’ U’ R2 U L U2