Lateral Thinking & logical deduction: Test your powers of thinking

Lateral 100 Fiendish Questions to Make You Think Differently

Tom Scott

Murdle 100 Simple to Impossible Mysteries to Solve Using Logic, Skill, and the Power of Deduction

G. T. Karber

Test din IQ

Tim Dedopulos

The Genius Within

David Adam

Modern Puzzles: From The Victorians to the Computer Age

Tim Dedopulos

Can You Solve My Problems?

Alex Bellos

Bletchley Park Brainteasers

Sinclair McKay

A Cabinet of Philosophical Curiosities

Roy Sorensen

Barnas quiz 2

Stig Arnesen

Sherlock Holmes' Elementary Puzzles

Tim Dedopulos

Mastermind

Maria Konnikova

Giga IQ-nøtter

The Riddle of the Labyrinth

Margalit Fox

"Mensa" - Challenge Your Intelligence

Ken Russell

Tenk på et tall

John Bremner

Hvor høy er din IQ?

Harold Gale

IQ-nøtter

Terje Øygard

Styrk intelligensen

Josephine Fulton

Tenk!

Lars Endre Kjølstad

Guaranteed to Bend Your Brain

Kjartan Poskitt

TEASE YOUR BRAIN, TEST YOUR SMARTS

Jack Botermans

GENIUS TEST

Mensa null

IQ

Anne Lene Johnsen

Thinkertoys

Michael Michalko

Easy Mind-reading tricks

Robert Mandelberg

That book

Mitchell Symons

Thinking Mathematically

Thomas p.

Mathematical puzzle tales

Martin Gardner

Giant Book of Mensa Mind Challenges + Giant book of challenging thinking puzzles

Poniachik, Jaime; Poniachik, Lea; Sole, Tim; Marshall, Rod; Fernández, J.J. Mendoza

Mind bending

Jenny Lynch

More Mindbending Thinking Puzzles

Simon Melhuish

Labyrinths of Reason Paradox, Puzzles and the Frailty of Knowledge

William Poundstone

Game, Set and Math Enigmas and Conundrums

Ian Stewart

How to solve it

George Polya

Game, set & match

Ian Stewart

Mind Benders: Games of Shape

Ivan Moscovich

Can You Solve These? Mathematical Problems to Test Your Thinking Powers

David Wells

Lateral Thinking For Management: A Handbook

Edward De Bono

Mathematical bafflers

Angela Dunn

Mental alertness

Kurt Donsbach