Q.

Agar is sawal ka jawab de diya to hm aapko duniya ka sabse samjhdaar insan samjhege.
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Aisi kaun si chiz h jo Subah dekho to hari, dupahar mein dekho to kaali, shaam ko dekho to neeli Aur raat ko dekho to safed hoti h.

Hint: ye lagbhag sbke ghar mein mil jayegi.

Is sawal ka jawab dene ke liye aapke paas sirf 12 ghante h

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English Translation:

Can you name a thing which is green colour in the morning, black in afternoon, blue in evening and white at night.

Hint: Its found in almost every house.