Can you find out what is missing?

1 3 5
2 4 ?

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

Find the smallest sentence with all the English alphabet.

Can you name four days which start with the letter 'T'?

Replace the question mark in the picture below.

The captain of a ship was telling this interesting story: "We travelled the sea far and wide. At one time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly." How can that be possible?

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

There was a man he lives in a hotel each morning he presses the first floor button each evening if there is a person in the elevator he asks him to press the 10 floor button if there is no one in the elevator he takes the stairs why.

Twice ten are six of us,

Six are but three of us,

Nine are but four of us;

What can we possibly be?

Would you know more of us?

Twelve are but six of us,

Five are but four, do you see?

What are we?

The answer I give is yes, but what I mean is no. What was the question?

I am an odd number. Take away a letter and I become even. What number am I?