This is easy:
What’s Going On?
What Becomes Of The Broken Hearted?
Don’t You Want Me?
What are your favorite question songs?
“What have they done to the rain?”
“Does Your Chewing Gum Lose Its Flavor on the Bed Post Overnight?” 
“Does Your Mother Know?”
Where’s Your Head At? by Basement Jaxx comes to mind…
Who Are You? (The Who)
Who’ll Stop the Rain? (CCR)
Where’s the Girl? (Voltaire)
Who Do You Want To Be? (Oingo Boingo)
Leonard Cohen’s “Who By Fire?”
“Have You Ever Seen the Rain?” CCR
“Who Killed Davy Moore?” Bob Dylan
“Are You Ready?” Pacific Gas and Electric
“What’s the Ugliest Part of Your Body?” - Frank Zappa/Mothers of Invention
“How Many More Years?” - Howlin’ Wolf
“Where Is This Dream of Your Youth?” - Strawbs
“Who Are You?” - The Who
“(What’s So Funny 'bout) Peace Love and Understanding?” - Elvis Costello (orig. Brinsley Schwarz)
“Question” - Moody Blues
In The Flesh?
Is There Anybody Out There?
What Shall We Do Now? - the lyrics of which are all questions themselves.
Yes, The Wall is one of favourite albums; why do you ask? 
Parellel or Together? - Ted Leo and the Pharmacists
Gah, make that “parallel”.
Is There Something I Should Know? - Duran Duran
Rio? - Duran Duran
Should I Stay or Should I Go? - The Clash
Don’t You Want Me? - Human League
Who Can It Be Now? - Men at Work
What’s Love Got to Do With It? - Tina Turner
What About Love? - Heart
Why Can’t This Be Love? - Van Halen
Who’s That Girl? - Madonna
What Is Love? - Howard Jones
What’s On Your Mind? (Pure Energy) - Information Society
What Have I Done to Deserve This? - Pet Shop Boys
Who’s Johnny? - El DeBarge
Who’s That Girl? - Eurythmics
Tainted Love / Where Did Our Love Go? - Soft Cell
“Are You Experienced?”
“Why Don’t We Do It in the Road?”
“Is You Is, Or Is You Ain’t My Baby?”
Do They Know its Christmas? by Band-Aid
Have You Heard? by The Moody Blues
What’s the Frequency, Kenneth? by REM
What Becomes of the Broken-Hearted? by Jimmy Ruffin
“What is This Thing Called Love?” (The story’s pretty good, too.) – Cole Porter
“Is it the Girl? Or Is it the Gown?” – Porter
“Who put the Bomp in the bomp bah bomp bah bomp?” – Barry Mann
"What Kind of People Are They?’ – John Entwistle
“What Do You Want from Me?” – Pink Floyd
“Who Can I Turn to?” – various
“Why Can’t You Behave?” – Cole Porter
“Who’s Got the Pain?” – Adler/Ross from “The Pajama Game”
What Difference Does It Make?
How Soon Is Now?
Is It Really So Strange?
…all by The Smiths.
Hell, I’ll throw in a few XTC faves:
This Is Pop?
Are You Receiving Me?
“Where Have All the Flowers Gone?”
“Is She Really Going Out with Him?”
“What Becomes of the Broken-Hearted?”
“Do You Believe in Magic?”
“Do You Want to Know a Secret?”
“Do You Know the Way to San Jose?”