Verbal Reasoning - Mental Ability Questions

Each  of  the  following  questions has   four   statements.   Three   are   logically correct.  Some  of  which  may  look  factually absurd.  Ignore  this  absurdity  and  look  to  the logical   corrections.   Choose   the   statement which is wrong or doubtful:-

A brother and sister leave home for school. The brother goes 0.5 km East, then turns right and goes 3.5 km and reaches his school. The sister goes 2.5 km North, then 1 km West, then turns left and goes 6 km and reaches her school. Where is the brother's school with respect to the sister's school?

In the following question, select the related letters from the given alternatives.TRACK : MECTV : : POND : ?

Select the related word from the given alternatives.
River : Stream :: Ocean : ?

Select the related word/letters/number from the given alternatives.
PEON : QRHS : : JOCK : ?

Ratio of present ages of Pankaj and Punit is 5 : 6 and the sum of their ages is 33 years. What will be the difference (in years) of their ages?

Two motorcyclists P and Q start from the same point. P rides 11 km West, then turns South and rides 16 km, then turns to his right and rides 14 km. Q rides 30 km South, then turns to his right and rides 25 km. Where is Q with respect to P now?

If EXPLAIN is coded as BUMIXFK, then how will GYM be coded as?