There's a regenerative candle that creates a new candle as it melts.
20
The first guy to win Who Wants To Be A Millionaire (USA) used none of his lifelines until the final question, where he called his dad. During the call, he told his dad he didn't need any help on the final question, but he just wanted to let him know that he was about to win $1,000,000.
29
The first foreigner to become a samurai was an African slave.
26
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
As part of an advertising campaign, Molson, a Canadian beer company, strategically placed 'beer fridges' around Europe that only Canadian passports could unlock.
11
Water, electricity, and gas has been free in Turkmenistan since 1991.
11