In the following question, select the missing number from the given series.
19, 38, ?, 228, 684, 1368

There are five students - P, Q, R, S and T having different heights in a class. Ps height is more than only one student. Qs height is more than S and P but not more than R. Ss height is more than P. R is not the smallest. Who is having the maximum height in the class?

In a row of 74 girls, Shweta is 27th from left end. Palak is 7th to the right of Shweta. What is Palaks position from the right end of the row?

In the following question, from the given alternative words, select the word which can be formed using the letters of the given word.
CAPITULATE

In a certain code language, "BIOLOGY" is written as "YRLOLTB". How is "PHYSICS" written in that code language?

In the following question, correct the equation by interchanging two signs.
6 + 8 ÷ 4 – 4 = 8

If 4 x 9 x 3 = 4 and 5 x 3 x 1 = 3, then
9 x 9 x 7 = ?

In the following question , select the number which can be placed at the sign of question mark(?) from the given alternatives.

How many rectangles are there in the given figure?

In the following question below are given some statements followed by some conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusion logically follows the given statements.
Statements:
I. All cups are plates.
II. Some plates are glass.
Conclusions:
I. Some glasses are cups.
II. All glasses are cups.