Sherlock Holmes' club

As far as I'm concerned, there isn't a person who doesn't know the famous literature hero Sherlock Holmes in books of Auther Conan Doyle. This famous detective liked tricky deals and he could always find a clue to each deal. He used a detective method based on irreproachable logic and calculation of the smallest things of the deal.

 

Sherlock Holmes can give you some puzzles. So, you can find out, are you as clever as he is?

Sherlock

Holmes' club

Holmes and Watson were on the trail of bank robbers. “Do we know anything about them?” asked Watson as they boarded the Brighton train. “Yes, Watson. My enquiries show that they both born on the same day of the same year and of the parents.” “So they’re twins!” exclaimed Watson. “Not so, Watson,” replied Holmes.

HOW IS THIS POSSIBLE ?

Dr Watson was making his way back to Baker Street when he bumped into an old colleague whom he hadn’t seen or heard of for twenty years. They had been at medical school together and had graduated at the same time.
“Where are you now?” asked Watson.
“I’m the head surgeon at London’s Hammersmith Hospital,” came the reply.
“And this little girl,” said Watson. “Is she yours?”
“Yes, I’ve been married for eight years now.”
The little girl tugged on Watson’s jacket. “My name’s Mary,” she said.
“Fancy that,” replied Watson patting her on the head. “The same name as your mother.”

HOW DID WATSON KNOW THAT ?