Dell laptop keys not functioning properly.

[Batool]

   Hello! A couple of days ago I spilled cereal on my laptop and the screen went black and stopped working. I freaked out and didn't know what to do so I tried wiping it off then got advice to put in rice. I didn't know that I had to turn the laptop off at first so I think the motherboard might have gotten fried in that time it was on   

   
Anyway I turned the laptop off after a while, and today when I turned it on it actually started working and the screen wasn't black so I thought it was all okay   
   
But then When I started typing, the letters would come out differently   

   
For example "D" would be "FSDA" and "Q" would be RWQEU and some letters weren't even working. What's wrong with it? Is it possible that the motherboard is fried or? Please help

[Geek-9pm]

got advice to put in rice

What?

Can you remove the keyboard from the laptop?
Clean it with rubbing alcohol.
Let it dry completely.

[Batool]

What?

Can you remove the keyboard from the laptop?
Clean it with rubbing alcohol.
Let it dry completely.

As for the rice thing, it's because rice is apparently really good at absorbing liquids or something like that.
But I'm not sure I can remove the keyboard buttons? What if I can't put them back in or break one or something 

[Geek-9pm]

Alcohol is good at  reducing water damage It will displace water. Other solvents can work better , but are not available for household use.
Here is a video:
https://www.youtube.com/watch?v=GUzBWFqTKwM
A relevant article
http://www.instructables.com/id/Clean-Your-Sticky-Laptop-Keyboard/step4/Remove-Keys/

This is the procedure used by technicians who repair laptops.
Hope you get it to work.