In the following series find the missing numbers.
21, 26, 33, 42, 53,?

Kanna is taller than Malik. Dev is shorter than Krish where as Krish is taller than Malik. Veena is shorter than Krish but taller than Malik and Dev is taller than Veena. Who is the Shortest ? 

Complete the following alphabet series.
ABC, PQR, DEF, STU, ?

Calendar of 1991 could be used again? 

The following equation is incorrect. Which two signs should be interchanged to correct the equation?
12 + 10 - 28 ÷ 7 x 4 = 48

In the given figure, how many wooden plates are there?

If ‘+’ stands for division, ÷ stands for multiplication, multiplication stands for addition; then which one of the following equation is correct?

A tourist travelled 10 km in the west and went 4 km after turning to the left. Then he travelled 4 km. in the East and went 5 km. after turning to the right. Then he travelled 6 km. after turning to his left. Find his direction regarding the starting point.