Pointing to a girl Sandeep said, "She is the daughter of the only sister of my father." How is sandeep related to the girl?

Pointing to a boy in the photograph Reena said, "He is the only son of the only child of my grandfather." How Reena is related to that boy?

1. A * B means A is the sister of B
2. A $ B means B is the mother of A
3. A + B means A is the brother of B
4. A = B means B is the father of A.

Which of the following means M is the maternal uncle of N?

If the first two statements are true, the third statement is :
I. Tanya is older than Eric.
II. Cliff is older than Tanya.
III. Eric is older than Cliff. 

If the first two statements are true, the third statement is :
I. Blueberries cost more than strawberries.
II. Blueberries cost less than raspberries.
III. Raspberries cost more than strawberries and blueberries. 

If the first two statements are true, the third statement is :
I. All the trees in the park are flowering trees.
II. Some of the trees in the park are dogwoods.
III. All dogwoods in the park are flowering trees.

If the first two statements are true, the third statement is :
I. Mara runs faster than Gail.
II. Lily runs faster than Mara.
III. Gail runs faster than Lily.

If the first two statements are true, the third statement is :
I. Apartments in the Riverdale Manor cost less than apartments in The Gaslight Commons.
II. Apartments in the Livingston Gate cost more than apartments in the The Gaslight Commons.
III. Of the three apartment buildings, the Livingston Gate costs the most.

If the first two statements are true, the third statement is :
I. The Kingston Mall has more stores than the Galleria.
II. The Four Corners Mall has fewer stores than the Galleria.
III. The Kingston Mall has more stores than the Four Corners Mall.

If the first two statements are true, the third statement is :
I. All the tulips in Zoe's garden are white.
II. All the pansies in Zoe's garden are yellow.
III. All the flowers in Zoe's garden are either white or yellow.