It is a six-letter word.
The first four letters are me.
The second and last letters are the same.
The fourth second and last letter is payment.

Who is it?

What four weights can be used to balance from 1 to 30 pounds?

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 animal walks on four legs in the morning, two legs during the day, and three legs in the evening?

Oedipus, the king of Thebes, figured out the answer to the riddle:

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

I ask Joseph to pick any 5 cards out of a deck with no Jokers.

He can inspect then shuffle the deck before picking any five cards. He picks out 5 cards then hands them to me (Jack can't see any of this). I look at the cards and I pick 1 card out and give it back to Joseph. I then arrange the other four cards in a special way, and give those 4 cards all face down, and in a neat pile, to Jack.

Jack looks at the 4 cards i gave him, and says out loud which card Joseph is holding (suit and number). How?

The solution uses pure logic, not sleight of hand. All Jack needs to know is the order of the cards and what is on their face, nothing more.

I have an eye but still cannot see.

Who am I?

Why do Chinese men eat more rice than Japanese men do ?

Which country gets ill every time?

I’m orange, I wear a green hat and I sound like a parrot. What am I?