Prove that the below maths equation is true.

8 + 8 = 91

In a football game, Christina defeated Teresa by 2 - 0 but no man from either side scored. How can this be possible?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

What 8 letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

In the Mexico City area, there are two Houses H1 and H2. Both H1 and H2 have two children each.
In House H1, The boy plays for Mexico Youth academy and the other child plays baseball.
In House H2, The boy Plays soccer for his school in Mexico and they recently have a newborn.

Can you prove that the probability of House-H1 having a girl child is more than that of House-H2?

Give it food and it will live; give it water and it will die.

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.

I went to the bookshop and spent one-half of the money that was in my purse.

When I came out, I found that I had as many cents as I had dollars and half as many dollars as I had cents when I went in. Find the money in my purse when I entered the store.