what does the below rebus means?

I go up and I go down.
I go up towards the beautiful sky and down toward the green ground.
I am present tense.
I am past tense too
Children love me.

Who Am I?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

What is the Surname of Barbie Doll?

what's the probability of getting a king or a queen from a pack of 52 cards?

If you paint a brown house white it will become a white house. If the stoplight changes from red to green, then the light is green. So, if you throw a white shirt into the Red Sea, what will it become?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

Count the number of lines in the image below ?

Below is the sum of symbols in each row and column in the figure. Analyzing the figure, can you find out the value of the symbols?

Can you move 2 matchsticks to form four equal sized squares.