1. The GCHQ Puzzle Book II. (2018) Authors: GCHQ Record Type: Book Extent: 1 online resource (386 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. Objects and modalities : a study in the semantics of modal logic /: a study in the semantics of modal logic. ([2017]) Authors: Tulenheimo, Tero Record Type: Book Extent: 1 online resource View Content: Available online (eLD content is only available in our Reading Rooms) ↗
3. The Ultimate Mathematical Challenge : Over 365 puzzles to test your wits and excite your mind.: Over 365 puzzles to test your wits and excite your mind. (2018) Authors: The UK Mathematics Trust Record Type: Book Extent: 1 online resource (288 pages), (100 illustrations) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
4. Perfect numerical and logical test results. (2009) Other Names: Moutafi, Joanna; Moutafi, Marianna Record Type: Book Extent: 1 online resource View Content: Available online (eLD content is only available in our Reading Rooms) ↗
5. The Penguin Book Quiz : From The Very Hungry Caterpillar to Ulysses – The Perfect Gift! /: From The Very Hungry Caterpillar to Ulysses – The Perfect Gift!. (2019) Authors: Walton, James Record Type: Book Extent: 1 online resource (288 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
6. So You Think You've Got Problems? : Surprising and rewarding puzzles to sharpen your mind /: Surprising and rewarding puzzles to sharpen your mind. (2019) Authors: Bellos, Alex Record Type: Book Extent: 1 online resource (352 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
7. Paradoxes of the Infinite (Routledge Revivals). (2014) Authors: Bolzano, Bernard Record Type: Book Extent: 1 online resource (202 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗