Brainteaser/Logic interview questions: page 3 of 7

Questions 101–150

101. Counting all squares on a chessboard gridEasy
102. Infinite radical with sixesEasy
103. Cycling a mile with and against the windEasy
104. Smallest note collection paying any sum to 100Easy
105. Burrito bowls from ten optional toppingsEasy
106. Over-under shuffle cycle length for 14 cardsHard
107. Square root of four consecutive integers plus oneEasy
108. Least number one short of every divisor from 2 to 10Hard
109. Passengers left after three quarter-departure stopsEasy
110. Fewest saw cuts to make 27 unit cubesMedium
111. Shortest surface walk across a unit cubeMedium
112. Grandmother whose age digits are her grandkidsEasy
113. Latest past date with eight different digitsMedium
114. Fair payment for shared wheat among threeMedium
115. Ten factorial over six factorial as a factorialEasy
116. Random rectangle hitting the middle row of a gridHard
117. General survivor formula for the sword circleHard
118. Man whose death age was a 29th of his birth yearMedium
119. Handshakes when 100 guests all greet each otherEasy
120. Two pints using 7 and 11 pint jugsHard
121. When the faster driver gains a full lapEasy
122. Recovering starting stacks in a seven-player doubling gameHard
123. Total nines written from 1 to 1000Easy
124. Ferrying 358 soldiers using two children and a boatMedium
125. Most coin value with no exact dollar possibleEasy
126. Box-shaped prisms inside a 5 by 5 by 5 cubeMedium
127. Missing digit of two to the 29thHard
128. Turning down one or two adjacent cards in a row of tenMedium
129. Number ending in 4 quadrupled by rotating that digitHard
130. Alternate deletion around a circle of 2000Medium
131. Splitting 100 coins into piles to maximise productMedium
132. Number of digits in 99 to the 99Medium
133. Digits of 2 to the 1000 next to 5 to the 1000Medium
134. Smallest multiple of 15 written with ones and zerosEasy
135. Lattice paths forced through a power-upMedium
136. Hundred self-referential at-most statementsMedium
137. Sum of binomial coefficients with both entries oddMedium
138. Hundred rational tigers and a single sheepEasy
139. Win-by-N match as the margin growsEasy
140. Cube equal to a sum of three large cubesEasy
141. Next alignment of planets with 40, 60, 90 year orbitsEasy
142. Integers up to 1000 built from fours and fivesEasy
143. Locking in profit with a stock and a side betEasy
144. Fastest way to grill four steaks three at a timeEasy
145. Coprime picking game on the integers 2 to 30Hard
146. Can a 20 percent up or down walk return to startEasy
147. One percent daily compounding over fifteen daysEasy
148. Toasting four slices in a three-slice panEasy
149. Pond coverage when starting with eight lily padsEasy
150. Guesses needed to find a number up to 1000Easy