Rachel Riley has become a household name thanks to her stint on Countdown. The brainy beauty isn't simply known for her dazzling looks, though. Her sharp brainpower and ability in solving those tricky numerical puzzles have earned her a legion of fans. From tackling this infamous Conundrums to revea

The city of London sweltered in the heat of summer, 1858. But it was not merely the sun that baked the metropolis. An even more unpleasant force infested its very heart: the River Thames. Years of industrial discharges had transformed London's lifeblood into a nauseating odor. The stench was oppress

One sunny/bright/clear afternoon in the late 1580s/1590, a small colony/115 settlers/a group of adventurers on Roanoke Island vanished without a trace/clue/whisper. This event, known as the Lost Colony of Roanoke, has haunted/baffled/puzzled historians and amateur sleuths/investigators/enthusiaists