6 B in an O?

More Questions from Logic Puzzles

• Logical puzzle A boy and a girl are talking. "I am a boy" - said the child with black hair. "I am a girl" - said the child with white hair. At least one of them lied. Who is the boy and who is the girl?
• Logical puzzle You want to send a secret message to your friend Alex in the mail. But Sam, who you don't trust, has access to all your mail. So you put your message in a box with a lock. But you are not allowed to send a key! How can you get your message through securely?
• 18 H on GC?
• 19 C in a CB
• 'Brothers and sisters, I have none. But that man's father is my father's son'. How I and that man are related respectively?
• I am the first on Earth, the second in Heaven. I appear two times in a week you can only see me once in a year. Although I am in the middle of the sea, l am not found in month, but l am in February, June, September, October, November & December. Who am I?
• One boat is overtaking another. Which boat must give way?
• What has a spine but no bones?
• A man and his son are in a terrible accident and are rushed to the hospital in critical care. The doctor looks at the boy and exclaims "I can't operate on this boy, he's my son!" How could this be?
• I am lighter than air but a hundred people cannot lift me? What am I?

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