List of all Super Junior's member solo and duet?

Leeteuk & Key "Bravo"

Leeteuk & Krystal "Grumbling"

Leeteuk "Honey"

Leeteuk "She"

Heechul & Jay from TRAX have their own sub-group

Heechul & Kim Jang Hoon "Break Ups are so Like Me"

Heechul "First Star"

Hechul "Horn/Soul"

Heechul "Dont Walk Away"

Yesung "Just You"

Yesung "Are you ready?"

Yesung "Love Really Hurts"

Yesung "It Has To Be You"

Yesung "Waiting For You"

Yesung "One Day"

Yesung "She Over Flowers"

Kangin "Dance with Doc"

Shindong (none)

sungmin "Baby Baby"

Sungmin "Oh Wa"

Sungmin & CSJH Dana/Lina "Power"

Sungmin feat Japanese duo Moeya "For Tomorrow"

Sungmin & Yesung "Now We Go to Meet"

Eunhyuk & Donghae released their album titled "Oppa Oppa" with solos and duets in it.

Eunhyuk & Donghae "I Wanna Love You"

Donghae "Beautiful"

Donghae & Ryeowook "Just Like Now"

Donghae & "Dreams Come True" with Seohyun

Donghae & Henry "That's Love"

Siwon "Who am I"

Siwon "Your Grace is Enough"

Ryeowook "Smile Again"

Ryeowook "If You Love More"

Ryeowook "One Fine Spring Day"

Ryeowook "Insomnia"

Ryeowook "Smile Again"

Kyuhyun "Smile"

Kyuhyun "Love Again"

Kyuhyun "The Way to Break Up"

Kyuhyun "Late Autumn"

Kyuhyun "Listen To You"

Kyuhyun "Hope is a Dream that Doesn't Sleep"

Kyuhyun "7 Years of Love"

Kyuhyun "Edge of Rain"

Kyuhyun "I Temporarily Lived by Your Side"

Kyuhyun & Jonghyun "A Goose's Dream"

Kyuhyun & Yesung "Your Eyes"

Kyuhyun & Changmin "Just the Way You Are"

Kyuhyun & Seohyun "Way Back into Love"

Sorry it's so long...they're just TOO talented...lol

Hope that Helps :)