Which two signs should be interchanged to make two given equation correct.
4 × 8 ÷ 16 – 4 + 6 – 3 + 2 = 32

If 6 * 9 – 4 = 58 and 3 * 9 – 7 = 34, then in the expression A * 4 – 9 = 91, what is the value of 'A'?

There were 15 persons in a group, they shook hands with each other, then tell how many times the total number of hands were shaken -

If A, represent ‘ – ‘ and C, represent ‘ × ‘, D represent ‘÷’, and E represent ‘+’ then the value of
14 C 3 A 12 E 4 D 2=?

When Rahul was born, his father was 32 years older than his brother and his mother was 25 years older than his sister. If Rahul's brother is 6 years older than him and his mother is 3 years younger than his father, how old was Rahul's sister when he was born ?

If 2 is added to each even digit and 1 is subtracted from each odd digit in the number 945217, then what will be the sum of number/numbers not repeated in the new number?

The pages of a book had been numbered 1 to 100 manually. How many times will it be essential to write the digit 5? 

if 12 ( 20 ) 16 and 21 ( 35 ) 28, then what is value of A in 48 ( 80 ) A ?