Provide the most obvious answer, and follow up with a question.

[Rui F. Martins]

Cookie?
yes, please
Why does the rain falls?

 

[James Chant]

Why does the rain falls?
Gravity

Why don't many people donate to help RD survive?

 

[Bradley Vanian]

Why don't many people donate to help RD survive?

Selfishness (PS: That is not the reason in my case)

Why is my poop green?

 

[Chris Jenkins]

Why is my poop green?

Maybe too many sports drinks. (Happens with too much blue Powerade!)

Why is there still a hose-pipe ban in the UK when we had 1 month's worth of rain in 24 hours?

 

[Lee Knight]

Why is there still a hose-pipe ban in the UK when we had 1 month's worth of rain in 24 hours?
Is there a fine involved?
If yes, then it's for the revenue...

Where do all the moths go during a black-out?

 

[Joel Wraith]

Where do all the moths go during a black-out?

Same place they go when it's not a black out

Why is Quantum Physics so hard?

 

[Bram Hengeveld]

Why is Quantum Physics so hard?
Because we can't all be brilliant like Dr Sheldon Cooper

Will this question be answered in less than two months?

 

[William Levesque]

Will this question be answered in less than two months?
Only the wisests would know... Oh wait.

Why do so many club racers/autocrossers/etc don't know about Heel and Toe ?

 

[Omer Said]

Why do so many club racers/autocrossers/etc don't know about Heel and Toe ?
What is that?!

Why can't we sleep whole winter, like bears do?

 

[William Levesque]

Why can't we sleep whole winter, like bears do?
Because drifting is fun !

What is the best ever beverage in the history of all things drinkable ?

 

[Bradley Vanian]

What is the best ever beverage in the history of all things drinkable ?

MONSTER COOKIE COLA

Why, oh why is the sky blue?

 

[David Buxton]

Why, oh why is the sky blue?
Because it is

What is the main colour of the Red Devils?

 

[Tume]

What is the main colour of the Red Devils?

Red?

In My Little Pony, what is the most popular species?

 

[Alexander Macdonald]

In My Little Pony, what is the most popular species?

parasprite!

Why am I here?

 

[Fred Owen]

Procrastination

What is the number that answers everything?

 

[David Buxton]

What is the number that answers everything?

42

What is Pele famous for?

 

[Omer Said]

What is Pele famous for?

For waving the checquered flag at Interlagos?

Why Messi is famous?

 

[FerrariMan96]

Why Messi is famous?

Because he has a Wikipedia page

Why is Psy famous?

 

[mystaaRS]

Why is Psy famous?

Because he's Korean

Why does there have to be goals in Football?

 

[the_sigman]

Why does there have to be goals in Football?

To make defenders angry​

Why is Earth made for?​