Question: How many sons does X have?

Statements:

1. Q and U are brothers of T.
2. R is sister of P and U.
3. R and T are daughters of X.

Statements:

1. Pointing to the photograph, Kunal said, "She is the mother of my father's only granddaughter".
2. Kunal has no siblings.
3. Pointing to the photograph, Kunal said, "She is the only daughter-in-law of my mother."

Statements:

1. 'pit na tac' means 'come and go' in that code language.
2. 'ja ta da' means 'you are good' in that code language.
3. 'na da rac' means 'you can come' in that code language.

Statements:

1. P is taller than D and N but not-as tall as T.
2. R is taller than Q but not as tall as T.
3. Q is not taller than T and R.

Statements:

1. Vasu's basic salary is Rs 100 more than Rajan's salary who also serves in Vasu's company.
2. Other allowances drawn by Rajan besides his basic salary are Rs 2000 per month which is Rs 50 less than Vasu's salary.
3. Rajan's basic salary is Rs 1550 per month,

Statements:

1. Mathematics period ended at 10.00 a.m., which was preceded by Biology.
2. Physics was scheduled in the last period.
3. Mathematics period was immediately followed by Chemistry.