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

1 rabbit saw 9 elephants while going to the river. Every elephant saw 3 monkeys going toward the river. Each monkey had 1 parrot in each hand. How many animals are going towards the river?

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?

I always drive my customer away.

Who am I?

Eight of us go fourth, not back, to protect our king from an attack. What are we?

An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?

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

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?