Arrange these from older to new :

(a) Twitter

(b) WhatsApp

(c) Google

(d) Facebook

Choose the correct answer from the options given below :

In a row of 35 boys, when Raju was shifted to the left by five places, he became 17th from the right end. What was his earlier position from the left end of the row?

Mohan is 14th from the left end in a row of 40 boys. What is his position from the right end ?

In a row of 40 girls, when Purnima was shifted to her left by 4 places, her number from the left end of the row became 10. What was the position of Swati from the right end of the row if Swati was three places to the right of Purnima's original position?

Sonam is 8 ranks ahead of Soniya who ranks twenty-sixth in a class of 45. What is Sonam's rank from the last?

In a row of 40 girls, when Kavita was shifted to her left by 4 places her numbers from left end of the row becomes 12. What was the number of Suman from the right end of the row if the Suman was three places to the right of Kavita's original position?

Who is at the middle of the row.