Logical Puzzles
15.  In a consignment of eggs 552 were cracked, which was 12 percent of the total consignment. How many eggs were in the consignment? 

Answer  

16.  A man has 53 socks in his drawer: 21 identical blue, 15 identical black and 17 identical red. The lights are fused and he is completely in the dark. How many socks must he take out to make 100 per cent certain he has a pair of black socks? 

Answer  

17.  A box contains 12 marbles of three different colours green, yellow and blue4 each, If you were to close your eyes and pick them at random, how many marbles must you take out to be sure that there are at least two of one colour among the marbles picked out? 

Answer  
