I want to listen to them and see what all the hype is about. Have only heard few songs of them.
Can anyone tell me their top 10 songs or so?
I can't recommend enough just skipping Pablo Honey (you can come back to it later) & working through the albums chronologically. The Bends is so immediate that it's not an album you have to keep playing for it to grow on you, then you're straight into OK Computer. By the time you've played 20 or so tracks you've heard what for me are two of the best albums of all time & you should have a decent idea if you like the band & want to hear more. If neither album does anything for you, I'd say put on the opener of Kid A as a final act to see if the different sound piques your interest.
Up to you of course, but if you're trying to get into them I think you'll get so much more out of it that way. They're a proper albums band. There's always a chance people will like only a specific sound of theirs, but I think listening to their great songwriting stripped down (The Bends) & then in its most perfect form (OK Computer) is a great introduction. Within that context I think you get much more out of hearing their sound morph & grow as the years go by.
But so as not to be completely unhelpful, if you decide against that, here are 10 of my favourites:
Just
Paranoid Android
Let Down
How To Disappear Completely
Everything In Its Right Place
Pyramid Song
There There
Where I End & You Begin
Jigsaw Falling Into Place
Weird Fishes/Arpeggi