Which Bird does not make a nest, the best answer. 

The guy is on his final question for 5crore on ‘KBC’, and has one lifeline left, ‘Phone A Friend’,

And the Question was…
“Which Bird does not make a nest?”

1: Sparrow
2: Swallow
3: Blackbird
4: Cuckoo

The guy is not sure, so he calls his girlfriend.

She answers, “Stupid, it’s obviously a cuckoo, 100%” and the guy wins.
Later the guy calls his girlfriend, “how the hell did you know that, honey? I must say you’ve got more brains than I credit you for!”

And the sweet thing replies:

.”Well…., you idiot, cuckoo lives in a clock na!

The guy is still in coma ??