You're going to a friends house and want to give them some brownies. On the way to their house you cross 5 bridges. At each bridge you must pay a toll of half of your brownies to the owner. But they are all very nice and give you back a brownie from what you give them.
How many brownies must you start with to give your friend 2 brownies?
If you are to have two brownies at your friends house then you must have received one from the toll at the last bridge and one after giving half of what you had. So, you must have had two before giving toll at the bridge. So if you had 2 before any bridge you would land with two afterwards also, hence starting with two brownies will end in having two brownies at the end.
In a one km race Ajit, Sanjith and Soham are three participant. Ajit can give Sanjith a start 50 m and Soham a start of 69 m. How many meters start cab Sanjith give to Soham?
Rohan and Dravid were preparing to have a water balloon fight. "No Fair" cried Rohan, "You have 3 times as many as I do!" Dravid said "Fine!" and gave Rohan 10 more balloons. "Still not fair!" argued Rohan, "You still have twice as many as I do."
How many more balloons must Dravid give Rohan for them to have the same number?
How many cubes measuring 2 units on one side must be added to a cube measuring 8 units on one side to form a cube measuring 12 units on one side?
A man is walking down a road with a basket of eggs. As he is walking he meets someone who buys one-half of his eggs plus one-half of an egg. He walks a little further and meets another person who buys one-half of his eggs plus one-half of an egg. After proceeding further he meets another person who buys one-half of his eggs plus one half an egg. At this point he has sold all of his eggs, and he never broke an egg.
You and a friend play a game where you start with a pile of 1000 stones, and each turn you can either add 2 stones to the pile or remove 10 stones.
The player to remove the last stone wins.
Should you start first or second to win this game?
