Nice optical illusion

Nice optical illusion.

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Stereogram

Stereogram

Magic eye

Imagen magic eye

An unbalanced scale

Given a sack of salt, an unbalanced scale, and two 5-pound weights, measure exactly 10 pounds of salt.

 A book contains X pages, numbered, per usual, from 1 to X, with the total number of digits in those page numbers equal to 1095 (i.e. 1095 individual numbers). That being the case, how many pages are in the book?

Counting Puzzle

If you wrote all of the numbers from 600 to 700 on a piece of paper, how many times would you have written the number 6?

Two men , one dead.

Two men are in a desert. They both have packs on. One of the guys is dead. The guy who is alive has his pack open, the guy who is dead has his pack closed. What is in the pack?