What do you check every 30000 miles?

Which of the nations in UK has the smallest number of home-owners? How many times does four go into 92? How do you round 58 to the nearest ten? An acute triangle that has? What is the x-intercept of y equals -2? Why is the sum of triangles interior angle always 180 degree? What does a rectangle whose longer sides are 6cm? What number comes after number 1200? Does greater than mean addition? What is a flat face in the seekers series? What is the smallest 2-digit number that is divisible by both 7 and 5? Is it true that a number is divisible by 8 if it divisible by 4 and divisible by 2? What were Euclid's difficulties thoughout his life? What does something 3cm width x 1.7 cm look like? What is the radius of a circumference circle? How you write inverse proportion? What are multiples of 59? Do odd numbers have a odd or even number of factors? How much is 40 feet by 21 feet in square meters? What are ellipsoid figures?