In each of the following questions, four numbers are given out of which three are like in some manner while one is different. Choose the one which is different from the rest three?

The percentage of marks obtained by seven girls G1, G2, G3, G4, G5, G6 and G7 in a class are compared. All the girls have obtained different percentages of marks. G4 has the lowest percentage. G3 has a higher percentage than G5, but less than G1. The percentage of G6 is less than G2. G7 has the highest percentage. G1 has a percentage greater than only three girls.
 Who has the third lowest percentage? 

Read the following information carefully and answer the questions given below:

Mohan starts to walk 10 km. towards East then he turns to his right and walks 15 km. Again he turns to his right and walks 5 km. Finally, he turns towards East and walks 10 km.

What is the total distance covered by Mohan to reach the last point?

Direction: Answer the following question based on the given information.
(I) P, Q, R, S, T & U are travelling in a bus.
(II) Two of them are journalists, two are engineers, one is an editor & one is a writer.
(III) The editor P is married to a writer S.
(iv) A writer is a married to Q. Q is in the same profession as U.
(v) P, R, Q, S are two married couples & none of them has the same profession.
(VI) U is a brother of R. 

Which of the following is the married couple?

Find out the two signs to be interchanged for making following equation correct.
5 + 3 x 66 - 11 ÷ 8 = 15

Choose the odd numeral pair/group in each of the following questions:

Which of the following numbers will replace the question mark (?) in the given series?
 286, 303, 320, 371, 422, 507,?

Direction : Study the following information carefully and answer the questions given below:
Six persons are sitting in a row facing to the north and they have different ages but not necessarily in the same order. C sits 3rd from one of the end. The one who is 12 year old sits 2nd to the right of C.
The number of persons sit right of the one who 12 year old is same as the number of persons sit to the left of D. O sits 2nd to the right of the one who is 6 year old. Two persons sit between D and B, whose age is twice than D. N sits to the right of P. The one who 36 year old sits 3rd to the left of the one who 15 year old. The age of O is 18 year.

How many persons sit between P and D?