SAN ANTONIO - A team of three students from Russia proved their brainy prowess Wednesday, winning an academic competition in which they had just five hours to solve perplexing computing puzzles such as how to connect gears of a clock when given a specific shaft speed. ADVERTISEMENT "I am pleased with our performance today. It feels pretty good," Igor Kulkin, 21, said after his team from Saratov State University won the 2006 Association for Computing Machinery's International Collegiate Programming Contest. Working in teams of three, contestants in the 30th annual event had five hours to solve 10 problems that would...