A kind heart person buy packed food at 3$/packet from United states and sells them at 1$/packet at Africa. After some time he becomes a millionaire.

How come the guy become millionaire ?

John buys rice at Rs.60/kg from Britain and then sells them at Rs.5/kg in India. As a result of this, he becomes a millionaire. How come?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

John can fit six large chocolate boxes or nine small chocolate boxes into a carton. How many cartons will he require to put sixty-six chocolate boxes into?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

What work can one never finish?