Select the option in which the given figure is embedded. 
Select the number from among the given options that can replace the question mark (?) in the following series.
21, 22, 18, 27, 11, 36, ?
In a row, Mansi is 29th from the left and 33rd from the right. How many students are there in the row?
A class has a total of 60 students. Student 'B' is at 41st rank in merit order from the bottom. What is the rank of student 'B' from the top?
The sequence of folding a piece of paper and the manner in which the folded paper has been cut is shown in the following figures. How would this paper look when unfolded? 