If where selects how could i select, like every OTHER id?

Answer 1

You use:
SELECT * FROM example_1
WHERE ID !=1

Answer 2

Havent tested this but you could likely use a combination of ROW_NUMBER and the remainder operator - %.

For example:
WHERE (ROW_NUMBER % 2 = 0) should give you all records in even rows.
WHERE (ROW_NUMBER % 2 = 1) should give you all records in odd rows.

If you're using this to provide a "random" result you need to be aware this isn't random.

A better way may be to SELECT TOP (# number of records) and ORDER BY newid().

This assigns a psudo-random id to each record and then sorts by tha random id and provides you with a pre-set number of results.