Quantitative Aptitude - Arithmetic Ability Questions

What will come in place of the question mark (?) in the following questions ?

22% of ? + 166.64 = 340 

Find the odd man out of the following number series?

1/2, 1, 3/2, 6, 5/2, 3

In the following question, select the odd letter/letters from the given alternatives.

A and B take part in 100 m race. A runs at 5 kmph. A gives B a start of 8 m and still beats him by 8 seconds. The speed of B is:

On 8th Feb, 2005 it was Tuesday. What was the day of the week on 8th Feb, 2004?

 The average age of 8 men is increased by years when two of them whose ages are 21 years and 23 years are replaced by two new men. The average age of the two new men is :

Read the data given below and answer the questions based on it.

In the CBSE Board exams last year, 53% passed in Biology, 61% percent passed in English, 60% in Social studies, 24% in Biology and English, 35% in English and social studies, 27% in Biology and social studies and 5% in none.

What is the ratio of percentage of students who passed in Biology and Social Studies but not English in relation to the percentage of students who passed in Social Studies and English but not Biology?

In the following question, select the odd word pair from the given alternatives.