Correct Answer: 6713

Explanation:

The alphabets are coded as follows :

 

$$\begin{gathered} C ? H ? A R ? O ? L ? M ? E \\ 4 5 1 6 9 3 2 7 \end{gathered}$$

 

R is coded as 6,

 

E as 7,
A as 1  and
L as 3.
So, the code for REAL is 6713

Correct Answer: Roof

Explanation:

A person will stand on the floor and floor is called roof. So, a person will stand on the roof

Correct Answer: TZMCSPLD

Explanation:

Word is divided into groups of two letters each and then letters of each group move one place forward and one place backward alternatively as in English alphabet. Hence, 

PERINATH => PE RI NA TH =>QFQHOBSG  and POLE => PO LE => QPKD

similarly,

SYNDROME => SY ND RO ME => TZMCSPLD

Correct Answer: sam

Explanation:

nec po tam => boys are studying

 

me tam sam => grapes are sour

 

tam po me => boys are grapes 

 

It is clear that "sam" represents "sour" in that code language.

Correct Answer: ENAGITEV

Explanation:

The letters of the word are reversed in order, taking two at a time, to obtain the code.

Correct Answer: TMLAI NDAU

Explanation:

Letters at the odd places of the word are written first and these letters are followed by letters at even places.

Correct Answer: Sud

Explanation:

In the first and second sentences common word is Dogs and common code is Kun. In the first and third sentences common word is are and common code is Tom. Therefore Sud = baking

Correct Answer: TOJCFQNZO

Explanation:

There is two sequence.
S(odd) P(Even) I(odd) D(even) E(odd) R(even) M(odd) A(even) N(odd)
For odd sequence, we want to write next alphabet of that
and for even, we want to write previous alphabet of that.

TOJCFQNZO is the Answer.

Correct Answer: 3*$5

Explanation:

Following table depicts the code of used letters in the two given words: 

Letters     S     T     A     R     O     E

Code          5     $     *     2     3     @

Therefore, OATS => 3*$5

    

Correct Answer: do not touch the open electric wires

Explanation:

For convenience , we assign numbers to each word :

allow  children  to  play  on  the  ground

   1         2      3    4      5    6       7

It has been coded as : 

play  allow  on  children  the  to  ground

  4       1     5        2       6    3      7

------------------------------------------------------------------------

Hence the given code is :

the  do  open  not  electric  touch  wires

 4     1      5     2       6         3       7

Now arranging them as 1 2 3 4 5 6 7, we have "do not touch the open electric wires'.

Hence, option (3) is correct answer.