What Is Sudoku?
What Is Sudoku? Sudoku is a logic-based, combinatorial number-placement puzzle. The objective is to fill a 9×9 grid with digits so that each column, each row, and each...
Read More
Where Is a Needle Beam Used?
Where Is a Needle Beam Used? This has nothing to do with needles and nothing to do with light. A needle beam is a term used by builders and architects to describe the...
Read More
What Makes Geysers?
Geysers are steam explosions of a spring from which water and steam is ejected forcefully into the air at heights ranging from less than a few feet to over several...
Read MoreVisually Perceived Image: Numbers on Keypad
CLICK BELOW TO GET ANSWER The numbers on the keypad follow a certain logic. What number should replace the question mark? Answer: 8. The sum of each row and each...
Read More