Which number replaces the question mark?
Solve Mathematical Puzzle: 4, 5, 6, 8, 11, 16, ?, 37, 58, 92Correct answers: 166
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #riddles
HovercraftIn 1959, the first experimental hovercraft, the SR.N1 made its first trip at Cowes on the Isle of Wight. It was designed by Sir Christopher Cockerell and built by Saunders-Roe. The invention was considered initially only for military use, but was released for civilian use in 1959. On 25 Jul 1959, the prototype crossed the English Channel. Cockerell first considered the possibility of travel by hovercraft, a vehicle that can move across land or water on a cushion of air, in the early 1950s. Using a can of cat food inside a coffee tin and reversed air-flow from a vacuum cleaner, he proved his theory on the mud floor of his boatyard. The hovercraft is now used in a variety of roles, from military transportation to ferrying cars and passengers across the Channel. |