Rearrange the letters in "new door" to make one word.

If it took eight men ten hours to build a wall, how long would it take four men to build it?

The below given figure comprises of a pattern through which you can determine the missing letter. Can you push your mind to find the pattern and add the missing letter?

What kind of tree can you carry in your hand?

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?

Can you count the number of blocks in the picture below?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

What English word has three consecutive double letters?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

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.