Which ports connect special types of music instruments

If 16 ⊕ 27 = 48 and 23 ⊕ 39 = 51 then what will be the value of 25 ⊕ 48 = ?

If 4% of income tax is paid by me, my net income is ₹5,76,000. What will be my net income if income tax is raised to 8%? 

How many squares are there in the given figure?

Choose the pair which is related in the same way as the words in the first pair from the given choices.

CRICKET : PITCH :: SKATING : ________________

Select the word pair in which the two words are related in the same way as the two words in the following word-pair.  

Circle : Figure

Statement: 

A few Creams are green.

Only green are Pink.

Only a few Pink are brown.

No brown are red.   

Three of the following are alike in a certain way and one is different. Pick the one that is different from the rest.

Four of the following five are equal in a certain way and form a group.

Which one is not related to that group?

C, Q, S, E, I

Three of the following four number-pairs are alike in a certain way and thus form a group. Which is the pair that does not belong to that group?