A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

What brings you down but never up?

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

The horse jumps over the king.
Strangely there is absolutely no scratch on him.

Can anyone explain, how is this possible?

Replace the (?) with the correct mathematical signs to make the expression equal to 59.

18 ? 12 ? 4 ? 5 = 59

Which five letter word can be added at the end of below word to form a
valid word?

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A spy was in Canada trying to steal insider information on how to set up new Maple Syrup factories in their country. He was introduced to the operations manager of the biggest factory in Canada. However, the manager was suspicious and decided to test him with a question before he trusted him. So he asked, “What would you be sure to find in the middle of Toronto?” The spy thought fast and came up with an answer for the manager. What was his answer?

A worker is to perform work for you for seven straight days. In return for his work, you will pay him 1/7th of a bar of gold per day. The worker requires a daily payment of 1/7th of the bar of gold. What and where are the fewest number of cuts to the bar of gold that will allow you to pay him 1/7th each day?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

No matter how little or how much you use me, you change me every month. What am I?