You have scales and 9 identically looking balls, 8 of them have the same weight and the 9th is heavier. How many times do you need to use the scales to find the heavier one. Now suppose you're allowed to use the scales 3 times. What is the maximum number of balls as above, among which you can find the heavier one. What is the answer if you're allowed to use the scales n times. The other question I was asked has already been mentioned here.
If I had unlimited sticks, a lighter, and each stick takes an hour to burn from end to end. How would I time 45 mins?
Given a number of eggs produced per bird per day how many eggs are produced in x days with y birds.
Prob of at lease 2 coins heads up when throwing 3 fair coins
3Q of people gets off bus and seven gets on, and this thing repeats for three consecutive stops, how many passengers are there on the bus at the final stop.
Tell me about a time when you had to receive negative feedback. There are 4 chairs in a circle. You flip a die, if it lands on 4, you move counter-clockwise one seat. If it lands on any other number, you move clockwise the number of seats you got on the die. What is the probability after 6 die rolls that you end up on the same seat you started in?
one bulb in a sealed room, three switches, a,b,c, outside of the room, the room is totally sealed, nothing can be seen even the bulb is on, you can enter the room only once, how to confirm which switch is for that bulb
Haircut question
youre blindfolded and have 26 coins on table in front of you, 16 tails, 10 heads (facing up). make two piles so that each pile has same amount of heads. Theres no discerning the difference between heads and tails and you have to use all the coins to make your two piles.
If today is Friday July 8 2022, what day of the week will it be on July 8th 2032.
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