When it's bad luck to meet a black cat?

I inserted a coin in a bottle and closed its mouth with the help of a cork. Now, I was able to take the coin out from the bottle without taking out the cork or breaking the bottle. Can you tell me how I did it?

One day, John and his friends were playing around. Jacob hit something with a Pin and it popped. John's dad came into the room that very moment, but he wasn't mad. In fact, he was smiling. What did Jacob hit?

What kind of tree can you carry in your hand?

Bopanna was working on a murder case when he received a message about the location of the murder weapon.
The message was encrypted as below.

"deb mitciv eht edisni neddih si nopaew redrum ehT"

Tell me the location of the murder weapon.

Why is the Hole below a Lock?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

What part of the chicken has the most feathers?

You’re out on the water and see a boat filled with people. You look away for a second and look back again, but this time you don’t see a single person on the boat. Why? Hint: The boat did not sink.

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?