When 99 is considered higher than 100?

What English word has three consecutive double letters?

What has one letter and starts with an E?

There is a box. The area of its top is 240 square units, the area of the front is 300 square units and the area of the end is 180 square units.

Can you calculate the dimensions of this box with the given data?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?

Can you replace the question mark with the correct number?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

Andrew’s doctor gives him three pills and tells him to take one every half hour. How much time will have passed by the time Andrew’s taken all three pills?