Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it.

a_b_ba_b_ba 

Pointing to a woman in a photograph a man says " she is the only daughter of my wife's mother - in - laws" How is the woman related to the man?

In a class of 35 students, Kunal is placed seventh from the bottom whereas Sonali is placed ninth from the top. Pulkit is placed exactly in the middle of two. What is Kunal’s position from Pulkit?

Which of the following interchange of signs would make the given equation correct?
6000 + 400 x 300 - 900 ÷ 300 = 3900

If SUMMER is coded as RUNNER, the code for WINTER will be

In a certain code language, if EXTRANET is coded as 9*416394 and TECHNOLOGY is coded as 492735850#, then TOLERANCE will be coded as? 

Identify the symbols to be inserted to make the expression correct.
24 Δ 4 Δ 5 Δ 4

X is poorer than w, but not as poor as B. C is not as poor as x. Who is the poorest of all?