How many pop/rock songs contain questions?
I can think of:
who put the bomp…
why do fools fall in love? Frankie Lymon and the Teenagers
why does it hurt when I pee? Frank Zappa
Name some other songs with questions in them.
Who Are You? - The Who
Who Loves You? - The Four Seasons
Why? - Fleetwood Mac
Do You Know the Way to San Jose? - Dionne Warwick
…etc
What kind of fool…?
Who’s Johnny?
Who’s That Girl?
Where have all the flowers gone?
Who wrote the book of love?
Where did our love go?
Is you Is or is you ain’t my baby?
Does anybody really know what time it is?
Are you lonesome tonight?
Wouldn’t it be nice?
Who do you love?
Which way you going, Billy?
Are you experienced?
Who stopped the rain?
Where the Hell is Bill?
How am I supposed to live without you?
How Do I Live (huh?)?
Why bother?
Who Can it be Now?
Couple from George Harrison:
Isn’t it a Pity?
What is Life?
“Won’t someone please tell me what’s wrong?”
Fool in Love, Ike and Tina Turner
“What’s love got to do with it?”
Tina Turner
“But what more can a poor boy do than to play in a rock and roll band?”
Rolling Stones
“Why can’t I get just one kiss?”
Violent Femmes
And by far, the most important musical question of all time:
“Does anybody really know what time it is?”
Chicago
Heh, heh.
“What time is love?” (The KLF)
“Is a dream a lie if it don’t come true, or is it something worse” The River.
“Hey there mister can you tell me what happened to the seeds I’ve sown. Can you give me a reason, sir, as to why they’ve never grown.” This Hard Land
The universal question:
“Why must I be a teenager in love?”
Hrm, where’d my post go? 
Anyway:
Isn’t it ironic, don’tcha think?
Do you have the time to listen to me whine?
Why don’t we get drunk and screw?
Why don’t we do it in the road?
Isn’t the CCR song “Who’ll stop the rain?”
They also have “Have you ever seen the rain?”
The Sammy Hagar version of Van Halen had “Why can’t this be love?”
Do you believe in Magic?
John Sebastian (Lovin’ Spoonful)
“Where oh where can my baby be?”
Is There Something I Should Know? -Duran Duran
What Is Love? -Howard Jones
Will you still love me tomorrow, originally by some girl group from the 50s, but I like the covers by Dave Mason & Bryan Ferry better.