Cristina was born in 1888. She just had her 30th birthday today how did that happen?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

When can we add 2 to 11 and get 1 as the correct answer?

Look at the picture and find out which square is not linked with any of the other squares.

Can you divide numbers from 1 to 9 (1 2 3 4 5 6 7 8 9) into two groups so that the sum of the numbers of each group is equal?

Note: 9 cannot be turned over to make it 6.

A number with an interesting property:

When I divide it by 2, the remainder is 1.
When I divide it by 3, the remainder is 2.
When I divide it by 4, the remainder is 3.
When I divide it by 5, the remainder is 4.
When I divide it by 6, the remainder is 5.
When I divide it by 7, the remainder is 6.
When I divide it by 8, the remainder is 7.
When I divide it by 9, the remainder is 8.
When I divide it by 10, the remainder is 9.

It's not a small number, but it's not really big, either.
When I looked for a smaller number with this property I couldn't find one.

Can you find it?

Can you replace the question mark with the correct number in the below table sequence?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

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.

No one wants to have it, but if one got it, he does not want to lose it. What is It?