What has one letter and starts with an E?
Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. What am I?
I go up and I go down. I go up towards the beautiful sky and down toward the green ground. I am present tense. I am past tense too Children love me. Who Am I?
Always in you, Sometimes on you; If I surround you, I can kill you. What am I?
I get hot but I never sweat, I cook food but I am not a chef, I have a door but you can't enter me, I have a light but I am not a lamp. Who am I?
What month of the year has 28 days?
I am white when I am dirty, and black when I am clean. What am I?
I make two people out of one. What am I?
In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.
It comprises roots which nobody sees, Much taller than those trees, Up and up it goes, Still it never grows?
I possess a head I flaunt a tail But I don't have mouth or legs Can you find out who I am?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.