Choose analogous pair - Incandescent : Glowing

D. INDEFATIGABLE : UNTIRING

Choose the best alternative as the answer. - A race always has

C. RIVALS

C is A's father's nephew. D is A's cousin but not the brother of C.
How is D related to C ?

B. SISTER

Choose or find odd word - Sucrose , Ptyalin , Amylase , Pepsin , Lipase

A. SUCROSE

In the following question, a matrix of certain characters is given. These characters follow a certain trend, row-wise or column-wise. Find out this trend and choose the missing character accordingly.
12 (47) 21
10 (52) 4
64 ? 24

D. 83