Solve this murder case and IIM question a challenge for you

👉Solve this Murder case (challenge)..👈👈👈👈👎
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Near Mumbai
A👦 man was found murdred on 2-10-2013 wednesday afternon at 12.35pm in his house...... His wife called 👮police at 3:23pm..

Police questioned everyone..
🙍Wife: I was sleeping..
👦 son: i went for movies with my gf

👪Neighbours: We went 4 the marriage..

💂Driver: I went to atm withdraw cash..

👳Cook: I went to Wine shop to buy Wine..
👨gardener: i was in garden the whole time. i didnt hear anythng
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👲Watch Man: I went to My relative's Marriage..

Police arrested the murderer immediately..♿▫
Who was it? ❓❔
"Reply if u r briliant ♒
with correct reason"

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IIM question:-
Name the document which solely belongs to you but your signature on it makes the document invalid !

Who can answer is the real genious person.

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