NUMBERS whizz Rachel Riley dressed to impress in a gorgeous floral outfit on Countdown. The TV personality joined host Colin Murray on the popular Channel 4 show and wore a stunning form-fitting dress. 4 Countdown's Rachel Riley stunned in a figure-hugging floral dress Credit: Channel 4 4 Rachel paired her dress with some rose pink high heels Rachel, 37, pulled focus as the opening shot panned from the show's title treatment to the studio floor. The mother-of-two could be seen standing tall in a floral and lace dress with her hair half up and half down on yesterday's show. The...