World of Engineering
@engineers_feed
The most fun way to learn something new everyday. Brother page of @stats_feed YouTube https://t.co/rAUIl0V1xC
Joined August 2015
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♦️ The two through ten of diamonds are arranged in a magic square and then some of the cards are turned face down in their place. Which face down card is the four of diamonds? https://t.co/tEK28D4pDj
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