Using bloginfo() without a parameter will default to?

If you need to save data in WordPress for a limited amount of time, what is the best way to do this?

The get_option and update_option functions will serialize and unserialize arrays and objects automatically.

What function allows you to switch between blogs on your installed WordPress network?

What does wp_filter_kses() function do?

How do you use the WP_Widget class to create a new widget?

Which function should a plugin use in order to echo a string to the browser and make it translatable?

Which functions check if a post has featured image?

If you want to retrieve specific WordPress site users you'll use

In order to remove a .css file that is loaded by a plugin, which function is going to be used inside the theme's functions.php file?

Which file would you create/modify in your theme to customize a search form?