Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

What is the next number in this series?

4,12,84,3612....

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

What can you catch but never throw?

Can you solve this tricky maths equation problem by replacing it? mark with the correct symbol?

19834 -----: 187
15921 -----: 153
17561 -----: 139
13734 -----: ???

During which month do people sleep the least?

In a school, there are four subjects. Seventy percent of students study English, seventy five percent of students study Science, eighty five percent of students study Mathematics and eighty percent of students study Spanish.

Can you calculate the percentage of students that study all four subjects?

I am green and found in the forest and have needles instead of leaves. What am I?
Hint 1: It can be used for Christmas decorations.
Hint 2: I have a strong, scent that is used in air fresheners.

Can you replace the X (both small and big x) with the numbers between 1 to 19 such that all the rows of 3 numbers between X (big x) sum to 23?