These are called "Palindromes". Here's a bunch of them...
refer, reviver, rotator, rotavator, stats, solos, tenet, terret, testset, Kinikinik, Wassamassaw,
Yreka Bakery, A Toyota, Race fast safe car, civic, Dewed, deified, devoved, Hannah, repaper, kayak, minim, radar, madam, lemel, level..