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I. The Language Oasis
Puzzles
Charades
Associative Puzzles. Associative Chains.
Anagrams
Metagrams. Metagrams with a «saddle»
Ciphertexts
Intellectual Training
Language Puzzles
Antonyms and Synonyms
Homonyms. Homographs. Homophones
General Awareness
Revealing the Essential
Generalization
Classification
What is Unnecessary?
Analogies
Similes
Sayings and Proverbs
II. The Mathematical Oasis
Heuristic Problems
Roman Numbers. “Matches” Problems with Roman Numbers.
“Matches” Problems
Spaces and Intervals
Problems from the Calendar
Clock Problems
Sequences
Arithmetical Problems
The cut-and-try method. Integer-valued Solutions.
The Least Common Multiple
The Euler Circles
Intersection and Addition of Sets
Parts Problems_1. The Non-verbal Level.
Parts Problems _2. The Verbal Level.
Diagrams
Motion Problems
The Problems Solved from the End
Proportions
Proofs
III. The Numerical Oasis
Regularities
The Kingdom of Palindromes
Words-palindromes
Numbers-palindromes
The Forest School of Gnomes
Hours-palindromes
Dates-palindromes.
The Palindrome Time Machine
Figures-palindromes
Properties of Numbers
Divisibility of Numbers
Representation of Numbers
Calculation of Digits
Inequalities
Restoration of Numbers
IV. The Geometrical Oasis
A Picture with a Stroke of a Pen
Location
Partition
Perimeter and Square Problems
Land Surveyor
V. The Logical Oasis
Family Relations Problems
False Signs
Truth table
The Method of Exclusion
Inferences
Consistency
Location Problems
Camping
Sudoku
VI. The Combinatorial Oasis
Combinatorics
Puzzles from the “Black Box”
VII. The Strategic Oasis
Quick-wittedness
Pouring Problems
Weighting Problems
Transportation Problems
The Legend about the Hanoi Tower
Superpuzzles for the whole Family
The Strict Laws of Ancient Kingdoms
VIII. The Trainings Oasis
Spatial Imagination
The Attention Training
IX. The Oasis of Joy
Funny Questions
X. The Curiosity Oasis
Multiplication in Old Times
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