Verbal Reasoning - Mental Ability Questions

In a certain code, 592 means 'grapes are sweet', 374 means 'I like oranges' and 267 means 'oranges are sour'. Which digit represents sour?

How many such numbers are present in the below arrangement which are immediately preceded by a consonant and immediately followed by a letter?

Q@A3RI4*6T4W4O2^E$6S

If 19 $ 7 = 312 and 23 $ 9 = 448, then 31 $ 11 = ?

If 30%6 = -5, 10%5 = -2 and 10%2 = -5, then find the value of 80%8 = ?

Select the missing letter from the given responses?

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

The weights of 4 boxes are 30, 40, 50 and 100 kilograms. Which of the following cannot be the total weight, in kilograms, of any combination of these boxes and in a combination a box can be used only once?

In the following question, select the related number from the given alternatives. 850 : 863 : : 430 : ?