There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

What number divided by 4 is the same as that number minus 4?

What is the largest number you can write with just 3 digits?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

In a town, there are four houses located at different distances from each other. Following are the distances:

The third house is 60 meters apart from the first house.
The fourth house is 40 meters apart from the second house.
The third house is 10 meters nearer to the fourth house than it is to the second house.

Can you find out the distance between the fourth and the first house?

Krish is 45 years old and his mother Crishtina is 73 years old.

Can you find out how many years ago, his mother was three times his age?

How many triangles are there on the puzzle below?

A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

I am an odd number. Take away a letter and I become even. What number am I?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?