Quantitative Aptitude - Arithmetic Ability Questions

The value of cos0 deg is

125 - 73 + 48 - 137 + 99 = ?

In the following question, four number pairs are given. The number on left side of (–) is related to the number on the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the 

Four pairs of words are given below out of which three are alike in some manner and one is different. Which is different from the rest?

How much does one need to add to 4/5 to obtain 5/4?

23 x 19 = 437. How much is 0.0437 / 1.9 = ?

If sin x + cos x = √2 sin x, then the value of tan x is

10 dozen apples, 15 dozen mangoes & 20 dozen oranges are kept for sale. 1/2, 1/3rd & 1/4th of each item respectively have been added. What is the total number of fruits kept for sale now?