What comes next in series 12 5 11 21?

Is 15 a fraction of 5? At 2 o clock and 23 minutes in America what is the time in India? How do you write decimal in words 18.3406? What does the perpendicular to sign look like in maths? Who wrote the first gospel in the Bible? How separated word syllables bravery? What is the length of the rectangle is 20 more than its width if the perimeter is 160 cm what are the dimension of the rectangle? How do you write one hundred eleven and ninety ten thousandths? What is 22 x 5? Explain the 5-4-3 rule of networking? What does the measure in degrees tell you about an angle? What is the answer to 921 divided by 34? How many people dieded on 9 11? How many hours is 212 miles? What is 5 percent of 12oo? What is 3 square root of 45 minus 3 square root of 5? Is a square is a polygon and a quadrilateral? What is 799 times 99? Decimal notation for 500 percent? How are unit fractions alike how are they different?