Problems

Tasks may be completed in any order.
Already-solved problems are at the bottom of the table.

Categories:

Statistics Geometry Music Physics Puzzle

all tags

Id	Type	Title	Solved	Gravitas
1	Computing	Addition	11	1.00
2	Statistics	Mean, Median, and Mode	6	1.94
3	Statistics	Mean, Median, and Mode II	2	3.41
4	Computing	Addition II	3	2.91
5	Computing	Multiplication	2	3.41
6	Computing	Division	2	3.41
7	Computing	Compound Interest	2	3.41
8	Computing	Compound Interest II	1	4.11
9	Computing	Square Roots	1	4.11
10	Statistics	Standard Deviation	2	3.41
11	Statistics	Combinations and Permutations	1	4.11
12	Statistics	Permutations with Repeating Elements	1	4.11
13	Statistics	Control Limits	1	4.11
14	Geometry	Trapezoidal Rule	1	4.11
15	Statistics	The Bell Curve	1	4.11
16	Computing	Logarithms	1	4.11
17	Computing	Arbitrary Base Logarithms	1	4.11
19	Computing	Trigonometric Functions	1	4.11
20	Geometry	Polar Coordinates	1	4.11
21	Geometry	Cylindrical Coordinates	1	4.11
22	Geometry	Spherical Coordinates	1	4.11
23	Geometry	Scalar Projection	1	4.11
24	Geometry	Parabolas	1	4.11
25	Geometry	Parabolic Osculating Circles	1	4.11
26	Geometry	Ellipses	1	4.11
27	Geometry	Henge Finder	1	4.11
28	Geometry	Metro Loops	1	4.11
29	Geometry	A Heron's Journey	2	3.41
30	Geometry	The Lake Voyage	1	4.11
31	Geometry	Ant Colonies	1	4.11
32	Geometry	Blocked View	1	4.11
33	Geometry	Flat Belts	1	4.11
34	Geometry	A Fence and Four Boulders	1	4.11
35	Geometry	Highway Access	1	4.11
36	Geometry	Beltways	1	4.11
37	Geometry	Bike Paths	1	4.11
38	Geometry	Maglev Loops	-	5.32
39	Geometry	Railway Access	-	5.32
40	Geometry	Casino City Highway Access	-	5.32
41	Geometry	Intersecting Circles of Common Radii	1	4.11
42	Geometry	Intersecting Circles of Different Radii	1	4.11
43	Geometry	3 Points on a Plane	1	4.11
44	Geometry	Intersecting Spheres of Common Radii	1	4.11
45	Geometry	Intersecting Spheres of Different Radii	1	4.11
46	Geometry	Methane Identification	2	3.41
47	Geometry	Methane Rotation	1	4.11
48	Geometry	Methane Normalization	-	5.32
49	Geometry	Tetrahedral Shadows	1	4.11
50	Geometry	Min and Max Regular Tetrahedral Shadows	1	4.11
51	Geometry	Min and Max Irregular Tetrahedral Shadows	-	5.32
52	Geometry	Caber Tossing in the Garden	-	5.32
53	Geometry	Coaxial Cable Bundling	1	4.11
54	Geometry	Off-Axis Cable Bundling	-	5.32
55	Geometry	Clock Triangles	1	4.11
56	Geometry	Clock Triangles II	-	5.32
57	Geometry	Clock Triangles III	-	5.32
58	Geometry	Pixel Circles	1	4.11
59	Music	Musical Notes and Intervals	1	4.11
60	Music	Scales and the Circle of Fifths	1	4.11
61	Music	Chords and Inversions	1	4.11
62	Music	Equal Temperament	1	4.11
63	Music	Pythagorean Tuning	1	4.11
64	Music	Fine Tuning	1	4.11
65	Music	Vibrating Strings	1	4.11
66	Physics	Freefall Time	1	4.11
67	Physics	Freefall Distance	1	4.11
68	Physics	Upward Toss	1	4.11
69	Physics	Projectile Motion	1	4.11
70	Physics	Drag Force	-	5.32
71	Physics	Terminal Velocity	1	4.11
72	Physics	Universal Gravitation	1	4.11
73	Physics	Elastic Collisions	1	4.11
74	Physics	Billiard Ball Collisions	1	4.11
75	Physics	Many Billiard Ball Collisions	-	5.32
76	Physics	Torque	1	4.11
77	Physics	Maximum Book Overhang	1	4.11
78	Physics	Maximum Encyclopedia Overhang	1	4.11
79	Engineering	Differential Manometers	2	3.41
80	Engineering	Pressurized Fluid Flow	1	4.11
81	Calculus	Approximating Slope	1	4.11
82	Calculus	Polynomial Derivatives	1	4.11
83	Computing	24-Bit Bitmaps	1	4.11
84	Calculus	Product Rule and Trigonometric Derivatives	1	4.11
85	Computing	Binary Numbers	2	3.41
86	Computing	Hexadecimal Numbers	1	4.11
87	Computing	Arbitrary Bases	1	4.11
88	Computing	Binary Fractions	1	4.11
89	Computing	Arbitrary Base Fractions	-	5.32
90	Computing	Negative Bases	1	4.11
91	Computing	Arbitrary Base88	1	4.11
92	Instructional	Kaprekar's Constant	1	4.11
93	Puzzle	Kaprekar's Conflux	1	4.11
94	Instructional	Elo Ratings	1	4.11
95	Biology	Half-Life	1	4.11
96	Puzzle	Blood Type	1	4.11
97	Puzzle	Expected Number of Random Moves	1	4.11
98	Puzzle	Expected Number of Random Moves II	-	5.32
99	Puzzle	The Magic Orchard	1	4.11
100	Puzzle	Wormholes of Cygnus	-	5.32
101	Puzzle	The Deranged Goats	2	3.41
102	Puzzle	A Deranged Gamble	-	5.32
103	Puzzle	Everyday Problems	1	4.11
104	Puzzle	Four Cardboard Boxes	1	4.11
105	Puzzle	Order Reconstruction	1	4.11
106	Puzzle	Mabinogion Sheep	-	5.32
107	Puzzle	Gachapon Collector	1	4.11
108	Puzzle	Gachapon Collector II	1	4.11
109	Puzzle	Gachapon Collector III	-	5.32
110	Puzzle	Subdividing Farmplots	-	5.32
111	Puzzle	Circular Subdivisions	1	4.11
112	Puzzle	Desert Escape	1	4.11
113	Puzzle	Double or Add	1	4.11
114	Puzzle	Multiply or Add	1	4.11
115	Puzzle	Double or Add Possibilities	1	4.11
116	Puzzle	Multiply or Add Possibilities	-	5.32
117	Puzzle	Rhombic Tiling	1	4.11
118	Puzzle	Rhombic Tiling Fixing	-	5.32
119	Puzzle	Unique Birdwatching	1	4.11
120	Puzzle	Unique Birdwatching II	-	5.32
121	Puzzle	Quest for the Jewel	1	4.11
122	Puzzle	Quest for the Jewel II	-	5.32
123	Simulation	War	1	4.11
124	Simulation	Conway's Game of Life	1	4.11
125	Simulation	Conway's Hexagonal Game of Life	-	5.32
126	Simulation	Conway's 3D Game of Life	-	5.32
127	Logic	NAND	1	4.11
128	Logic	NOT	1	4.11
129	Logic	AND	1	4.11
130	Logic	OR	-	5.32
131	Logic	XOR	-	5.32
132	Logic	NOR and XNOR	-	5.32
133	Logic	MUX	-	5.32
134	Logic	DEMUX	-	5.32
135	Logic	4-Bit Width Logic	-	5.32
136	Logic	Half-Adder	-	5.32
137	Logic	Full-Adder	-	5.32
138	Logic	RCA_4B	-	5.32
139	Logic	SRFF	-	5.32
140	Logic	TFF	-	5.32
141	Logic	DFF	-	5.32
142	Logic	Pulse Counter	-	5.32