These traditional problems often lay unsolved for centuries, and mathematicians gradually came to understand their depth ( in some cases ), rather than treat them as puzzles.

These problems, together with some conceptual puzzles, led many physicists to believe that a theory more complete than quantized general relativity must describe the behavior near the Planck scale.

These comprise some of the puzzles that have confronted epistemologists and philosophers of mind from at least the time of René Descartes.

These are known as tactical puzzles.

These newspaper puzzles were almost entirely non-cryptic at first and gradually used more cryptic clues, until the fully cryptic puzzle as known today became widespread.

These puzzles are also available in a book collection.

These are free to borrow and include hands on activities such as puzzles, construction games and stories related to themes of the museum.

These challenges include defeating a boss, solving puzzles, racing an opponent, and gathering coins.

These are often referred to as " logic grid " puzzles.

These puzzles are thus considerably easier than a physical jigsaw puzzle with the same number of pieces.

These are actually the easiest puzzles to solve, since fewer other pieces are potential candidates for mating.

These may consist of crossword puzzles, anagrams, Ditloids, Dingbats and basic math problems.

These puzzles are often black and white but can also have some colors.

These puzzles are inexact and many puzzle statements have more than one possible fitting answer.

These types of puzzles were a major inspiration for what has become known as " the hardest logic puzzle ever ".

These include pictures, such as children picking fruit ( picture on Robinson's squash ) or anthropomorphic fruit ( picture on Ribena ), behind-the-label " fruity fun " such as word searches, crossword puzzles, word scrambling etc., tickets to experiences such as film tickets, football or other sport match tickets, weekend breaks, new film releases or theme park trips

These puzzles are based on imperfect translations of sayings and book titles obtained by using language translation computers available to anyone.

These included DRAMAmazing race 2 by Singapore Drama Educators Association ( SDEA ) which involved school students solving puzzles and making use of good English to complete the race that was similar to the Amazing race, and the inter-school Scrabble Championship 2005 that was put together by Mattel Southeast Asia.

These abilities are required to solve puzzles later in the game, and can also be used to great effect in combat, since any non-static object within proximity to the player has the potential to be used as a makeshift defense or a deadly projectile.

These techniques are required to solve puzzles and defeat enemies.

These hidden resources include unfinished artworks, puzzles, scenery, voiceover or music recordings as well as gags inserted by the development team.

These challenges include defeating a boss, solving puzzles, racing an opponent, and gathering coins.

These puzzles, which have a gray background, do not count toward a player's requirement to solve a puzzle in every category.

These weekly puzzles were a feature of French newspapers such as L ' Echo de Paris for about a decade but disappeared about the time of World War I.

These short, `` streamlined '' meetings usually are sponsored by local banks, Chambers of Commerce, trade associations, or other civic organizations.

These roads are largely of less than highway standards, and usually carry traffic which is related to use of the National Forests.

These needs usually concern the reduction of guilt and some relief of tension.

These free-standing statues were usually marble, but also the form rendered in limestone, bronze, ivory and terracotta.

These are usually feeding, breeding or sheltering sites.

These favours usually entail Poirot being supplied with cases that would interest him.

These states are labeled by a set of quantum numbers summarized in the term symbol and usually associated with particular electron configurations, i. e., by occupation schemes of atomic orbitals ( e. g., 1s < sup > 2 </ sup > 2s < sup > 2 </ sup > 2p < sup > 6 </ sup > for the ground state of neon -- term symbol: < sup > 1 </ sup > S < sub > 0 </ sub >).

These are collegiate foundations, which provide a home and an income for unmarried ladies, generally of noble birth, called canonesses ( Kanonissinen ) or more usually Stiftsdamen.

These individuals usually have no body weakness, because their brain injury is not near the parts of the brain that control movement.

These songs usually have a very punctuated rhythm precisely for this reason, along with a call-and-answer format.

These are posteriorly directed and vary in number ( usually one to three ).

These two values are often interpreted as binary digits and are usually denoted by the numerical digits 0 and 1.

These specialty and pay BBSes usually had something special to offer their users such as large file libraries, warez, pornography, chat rooms or Internet access.

; Presiding Bishop or President Bishop: These titles are often used for the head of a national Anglican church, but the title is not usually associated with a particular episcopal see like the title of a primate.

; Honorary Assistant bishop, Assisting Bishop, or Bishop Emeritus: These titles are usually applied to retired bishops who are given a general licence to minister as episcopal pastors under a diocesan's oversight.

These may take the form of temporary charter hire of service buses, or the temporary or permanent conversion and operation of buses, usually of second-hand buses.

These layers of laminations are usually of cellulose paper, cotton fabrics, synthetic yarn fabrics, glass fabrics or unwoven fabrics.

These events are usually separated by periods of " normal " mood ; but, in some individuals, depression and mania may rapidly alternate, which is known as rapid cycling.

These symptoms include delusions or, less commonly, hallucinations, usually unpleasant.

These regions are also usually considered to be the historical geographical origin of Bambara people, particularly Segou, Sikasso, after diverging from other Manding groups.

These polls have been quite influential, as they indicate which strips the readers like best, and strips that have performed poorly in these polls were usually dropped.

These are usually written, and pronounced “ n choose k ”.

These remunerations vary between corporations, but usually consist of a yearly or monthly salary, additional compensation for each meeting attended, stock options, and various other benefits.

These rock types are usually of varying resistance, so the coastline forms distinctive landforms, such as coves.

These usually are not high-value coins, but the interest is in collecting a large volume of them either for the sake of the challenge, as a store of value, or in the hope that the intrinsic metal value will increase.