# Math

One out of 9 otherwise identical balls is overweight. How can it be identified after 2 weighings?

# Math

If you had five mangoes and two bananas in one hand and two mangoes and four bananas in the other hand, what would you have?

# Math

Placed above it makes greater things small. Placed beside it makes small things greater. In matters that counts it always comes first. Where others increase it keeps all things the same. What is it?

# Math

If it takes four rat catchers four minutes to kill four rats, how many rat catchers would be needed to catch 50 rats in 50 minutes?

# Math

In olden days, the student of logic was given this problem: If half of 5 were 3, what would one-third of 10 be?

# Math

I have 10 red socks and 10 blue socks in a drawer. How many socks must I take out to ensure that I have at least one matching pair? One how many to ensure I have at least a pair of red and a pair of blue?