Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

What is black when you buy it, red when you use it, and gray when you throw it away?

What part of the chicken has the most feathers?

You have an empty wine bottle with a cork that has been secured at the top in a normal way. There is a metal ring inside the bottle that is suspended by a string.

How can you make the metal ring drop to the bottom if you are not allowed to touch anything - not the bottle, not the cork, not the thread and not the ring?

I am sure no one can have two things for dinner. what are they?

Which part of London exists in France as well ?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

In a basket of apples,
when counted in twos, there was one extra
when counted in threes, there were two extra when counted in fours, there were three extra
when counted in fives, there were four extra
when counted in sixes, there was five extra.

However, if the apples were counted in sevens, no extra apple was left. Can you calculate the minimum number of apples that were present in the basket?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

2, 3, 5, 9, 17, _ What is the next number in the sequence?