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

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?

What does this rebus picture identify?

Why did Navjot Singh Sidhu put the new January calendar in the freezer

Solve the counting riddle by identifying the number of triangles in the given picture.

Two friends were betting. One said to the other, "The coin will be flipped twenty times and each time the coin lands on the head, I will give you $2 and each time it lands on the tale, you will give me $3." After flipping the coin twenty times not a single penny was exchanged among them.

How many times did the coin land on heads?

Given below is simple addition with a defined pattern pattern:
7 + 7 = 2
8 + 8 = 4
8 + 5 = 1
6 + 9 = 3
10 + 11 = 9

Can you analyze the pattern and find out the answer for:

4 + 9 = ?

What goes up but never comes down?

The ages of a father and son add up to 66.
The father's age is the son's age reversed.
How old could they be?
(3 possible solutions).

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?