I have one India specific invite for share. It's valid till 8 PM today.
Anyone who solve below puzzle first will get invite.
A solid, four-inch cube...
EDIT : Winner is @Li XingKe
To get the invite you have solve below small puzzle.
When asked about his birthday, a man said:
After so much efforts I am able to order my OPO due to @mrahman10301. Very thanks to you. You are such a kind person. You made my day.