If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

Eight of us go fourth, not back, to protect our king from an attack. What are we?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

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?

Three friends decide to distribute the soda cans they had among them. When all of them had drunk four cans each, the total number of cans that remained was equal to the cans each one of them had after they had divided the cans.

Can you calculate the total number of cans before distribution?

What jumps when it walks and sits when it stands?

What can go up a chimney down, but can’t go down a chimney up?

Which digit occurred maximum times between the number 1 and 1000?

What two things can you never eat for breakfast?

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not rounded numerals equals 24.