Yes.

2. In Page layouts I want to change the Order of the layout.how can you do that?

Edit the layout.

3. Profile?what is permission set?

https://infallibletechie.com/2012/11/what-are-permission-sets-and-how-do.html

4. What is after update and before update?

http://infallibletechie.blogspot.com/2013/02/before-trigger-in-case-of-validation.html

5. Every month 1st I need to insert a record in 1 object?how will you do that?

Schedule a class. Check the below for example


https://infallibletechie.com/2012/05/apex-scheduler.html

6. How many types of controllers are there?

3 types.

Custom Controller.
Standard Controller.
Extensions.

7. I want to use more than 1 object in visual force pages?which controller will you use?

Extensions. 


8. I want new 1 button on the detail page of standard Object ?how can you do it?

Create a button in that object and assign it to the page layout.

9. What is trigger and bulk trigger ?



http://infallibletechie.blogspot.com/2012/11/how-to-bulkify-trigger-code.html

10. For which events will trigger.new will support?


Insert and update.


Cheers!!!