What is a lotus diagram?

What is the area of a square meter? My 7 years old son has a math problem reasoning. the question is what number am I my tens digit is double my ones digit. i am less than 70 and greater than 60? How many feet are there in 2.7 meters? What is 5000 180000? How do you write 1.35 billion in number? What 2 numbers multiply together to make 168? What does the number mean that follows the Wave Creation shoes? How many millimetres are in 9 meters? How do you measure 5 liters using three containers 2 liter 6 liter 8 liter? Calculate Volume of a Rectangular length equals 100mm width equals 50mm height equals 100mm? What does 26 inches equal? What is the code of a c program that will read in a positive integer value and determine If the integer is a prime number and If the integer is a Fibonacci number? Instead of at target how do you get skydive in transfomers autobots? What is the total area of a rectangle with 4feet width and 8feet length? When was Five Weeks in a Balloon created? Can you make a octagon with four triangles? What is the prime numbers for 90? What awards were given to Daniel Bernoulli's? How do you spell one hundred sixty? Is negative 7 is bigger Than 6?