What four weights can be used to balance from 1 to 30 pounds?

Can you place three balls such that the equation shown in the picture holds true?

If two fifty-foot ropes are suspended from a forty-foot ceiling that is twenty feet apart, how much rope will you be able to steal if you have a knife?

It has horns but can’t beep. It is like to bleat but It is not a sheep. What is it?

Jack have ten pairs of black socks, eight pairs of white socks and seven pairs of green socks. Everything is mixed in a draw. As there is no light he were not able to identify the colour of the socks. How many of the socks did he want to take to match one pair

f you were running a race, and you passed the person in 2nd place, what place would you be in now?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

Find the missing number in the image below.

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

What does man love more than life, hate more than death or mortal strife; That which contented men desire; the poor have, the rich require; the miser spends, the spendthrift saves, and all men carry to their graves?