What does does this rebus picture means ?

Can you tell a 3D object that has just two surfaces?

Can you divide numbers from 1 to 9 (1 2 3 4 5 6 7 8 9) into two groups so that the sum of the numbers of each group is equal?

Note: 9 cannot be turned over to make it 6.

He loves to dance, twist and prance, he shakes his tail, and as a way he sails, wingless he flies into the sky. What is he?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

All of the flowers I have are orchids except two. All of the flowers I have are hibiscuses except two. All of the flowers I have are roses except two.

Can you tell me how many flowers I have?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

Using the clues below, what four numbers am I thinking of?

The sum of all the numbers is 31.
One number is odd.
The highest number minus the lowest number is 7.
If you subtract the middle two numbers, it equals two.
There are no duplicate numbers.