Mallika Sherawat respond to brain teasers in an episode of ‘Kaho Na Yaar Hai”! The sexy girl is pitted against none other then Sonu Nigam. In a question-answer round, she was quizzed about the time taken for three eggs to boil, if one egg took three minutes. And she promptly replied 9! Her silly response had Sonu Nigam and all others present on the sets in splits.