What goes up but never comes down?

What does the below rebus puzzle mean?

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

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

Can you count the number of squares in the figure below?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

A frog is at the bottom of a 30-meter well. Each day he summons enough energy for one 3-meter leap up the well. Exhausted, he then hangs there for the rest of the day. At night, while he is asleep, he slips 2 meters backwards. How many days does it take him to escape from the well?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

What does below Rebus mean ?

esgg sgeg gegs gsge

1 dollar = 100 cent
= 10 cent x 10 cent
= 1/10 dollar x 1/10 dollar
= 1/100 dollar
= 1 cent

=> 1 dollar = 1 cent

solve this tricky problem?