Here are some solved questions from ICICI Placement Papers

1) There are 6561 balls out of them 1 is heavy.Find the min. no. of times the balls have to be weighed for finding out the haevy ball?

Ans. 8

2) If i walk with 30 miles/hr i reach 1 hour before and if i walk with 20 miles/hr i reach 1 hour late.Find the distance between 2 points and the exact time of reaching destination is 11
am then find the speed with which it walks.

Ans: 120miles and 24 miles/hr

3)  No. of animals is 11 more than the no. of birds. If the no. of birds were the no. of  animals and no. of animals were the no. of birds( ie., interchanging no.s of animals and birds.), the total no. of legs get reduced by one fifth (1/5). How many no. of birds and animals were there?

Ans: birds:11,animals:22

4) Complete the series:5, 20, 24, 6, 2, 8, ?
               
Ans: 12
(as 5*4=20, 20+4=24, 24/4=6, 6-4=2, 2*4=8, 8+4=12).