I love snakes and people make me mad calling legless lizards snakes even though they look alike. 
Wow!  Why do you like snakes?
I love the elongated, legless carnivores because they are actually reptiles of suborder Serpentes!  So cool. 
What is a legless lizard?  I've never heard of such a thing!
They are like snakes but have eyelids, external ears which snakes don't have. 
Where are they located?
Well snakes are found on every continent except Antarctica and on most smaller land masses but not Ireland, Iceland, Greenland, Hawaiian aarchipelago and New Zealand and small Atlantic and Pacific islands. 
Why are there no snakes in those places?
Snake
Snakes are elongated, legless, carnivorous reptiles of the suborder Serpentes. Like all other squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales. Many species of snakes have skulls with several more joints than their lizard ancestors, enabling them to swallow prey much larger than their heads with their highly mobile jaws. To accommodate their narrow bodies, snakes' paired organs (such as kidneys) appear one in front of the other instead of side by side, and most have only one functional lung. Some species
snakes, however, are that legless lizards lack venom glands, cannot constrict prey, they have a fleshy tongue rather than a forked tongue, they have visible ear holes and they have remnant hind limbs. Furthermore, Burton’s legless lizard and the Pygopodidae, as a whole, are most closely related genetically and anatomically to geckos in the family Gekkonidae. This is despite the convergence and superficial resemblance of this species with snakes.
Burton’s legless lizard has significant morphological adaptations to enable it to deal with large struggling prey