Can someone give me good practice problems?

You could try Sane's Monthly Algorithms Challenges which are designed for people of all programming levels.

Here are some although googling would help you get more problems :

1) Create a program that checks if the input is odd or eve
2) Create a program that checks is a power of 2
3) Create a program that asks the user for a positive even number, if thats not supplied, then throw an error
4) Create a program that compares 2 strings and outputs its max
5) Create a program that has the user enter 2 numbers and outputs its max, min, and everage
6) Do #5 for 3 numbers then 4 numbers then 5

Try to generate a fibonacci series.....(range should be entered by user itself)

fibonacci series is.....

0 1 1 2 3 5 8......

i.e., initially 0 and 1 are printed and the next terms are the sum of previous two.....

try to solve it out...if u want, i'll provide you with hint....

Or you could have a look at this thread

Try to generate a fibonacci series.....(range should be entered by user itself)

fibonacci series is.....

0 1 1 2 3 5 8......

i.e., initially 0 and 1 are printed and the next terms are the sum of previous two.....

try to solve it out...if u want, i'll provide you with hint....

hmmm... seems like an interesting problem. i don't know how to get started with it though...

Or you could have a look at this thread

Ah thanks thats pretty helpful too.