I AM A BOX OBJECT USED TO WRITE LETTERS AND NUMBERS WHO AM RI RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

Peter will have to use a lock box that can hold two locks. He will put the ring in a box and will mail it to Mary. Upon receiving the box, Mary will put her own lock box inside and will send back to Peter. Peter can then-then take off his lock and send it off to Mary again. Did you answer this riddle correctly?
YES  NO  

A Floppy Disk. Did you answer this riddle correctly?
YES  NO  

An eye. Did you answer this riddle correctly?
YES  NO  

A stair rail Did you answer this riddle correctly?
YES  NO  

Jenna wrote it 120 times. Did you answer this riddle correctly?
YES  NO  

A Pen-Guin! Did you answer this riddle correctly?
YES  NO  

A tennis ball or guests Did you answer this riddle correctly?
YES  NO  

Whatever you bring has to be spelled with double letters. Did you answer this riddle correctly?
YES  NO  

A candle Did you answer this riddle correctly?
YES  NO  

Friendship. Did you answer this riddle correctly?
YES  NO  

A pack of cards Did you answer this riddle correctly?
YES  NO  

A hole Did you answer this riddle correctly?
YES  NO  

A chair Did you answer this riddle correctly?
YES  NO  

A ruler Did you answer this riddle correctly?
YES  NO  

A fence Did you answer this riddle correctly?
YES  NO