Always in you, Sometimes on you; If I surround you, I can kill you. What am I?
What is the riddle which can be asked all day with a different correct answer each time.
You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. 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?
I am soft and cuddly that soothe your heart. But, If you pick my last name I am going to tear you all apart. Who am I?
I have an eye but still cannot see. Who am I?
It comprises roots which nobody sees, Much taller than those trees, Up and up it goes, Still it never grows?
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?
How can you write nineteen in a manner that if we take out one, it becomes twenty?
I have no life, but I can die. What am I?
What is the Surname of Barbie Doll?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.