An 80 year old man was sitting on the sofa in his house along with his 45 years old highly educated son. Suddenly a crow perched on their window. The Father asked his Son, “What is this?” The Son replied “It is a crow”. After a few minutes, the Father asked his Son the 2nd time, “What is this?” The Son said “Father, I have just now told you “It’s a crow”.
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