Sticky Puzzles is a book of extremely addictive puzzles. They are vividly rich in varieties; ranging from traditional logic, math etc. based puzzles, to relatively irregular categories, such as quantum physics, encryption, algorithm design etc. All these were shortlisted based on 3 criteria. First: none of them are too easy or obvious. Neither they’re impossibly tough, like those which requires immense dedication to get solved. Second: regardless of which category they fall on, none of them requires any specialized knowledge. All you have to apply is just common sense. Third: all of them are masqueraded behind some wonderful stories in a way, so that the puzzle appears clearer and more transparent to you to visualize. But its type and difficulty level remain almost invisible. Ultimately, you're going to have some beautiful stories with a few engraved “?” signs deadly stuck inside your head. I’ve been obsessed with puzzles for years; this is an effort to present you the bests I have, in the best way I could.