The Tell Tale HeartOnline version Solve this riddle. The answer is your next clue. by SUZANNE OSMAN 1 I am written the same way forwards as well as backwards. Hints 1 I am pronounced as a letter, written with three, I have a twin whom I cannot see. 2 I have a lid but I'm not a coffee mug; I have a socket but I don't have a plug. 3 In hard times I sometimes run, in good times I glow like the sun. 4 Although I'm not a curtain I get closed every night. I’m sort of like a window and can be both opened wide or closed real tight. 5 When getting someone’s attention I am what you might try to catch, but if you’re a pirate at sea It might be covered by a patch.