Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

Find the hidden tiger in the given optical illusion ?

We are a group of eight brothers. We consider the weak, yet we protect the king in every battle. If we move ahead, we never turn back. Who are we?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

Solve this riddle by finding the odd one out from the rest.

If two's company, and three's a crowd, then whats four and five ?

In a contest, four fruits (an apple, a banana, an orange, and a pear) have been placed in four closed boxes (one fruit per box). People may guess which fruit is in which box. 123 people participate in the contest. When the boxes are opened, it turns out that 43 people have guessed none of the fruits correctly, 39 people have guessed one fruit correctly, and 31 people have guessed two fruits correctly.
How many people have guessed three fruits correctly, and how many people have guessed four fruits correctly

I am an eight letter word and I am a computer terminology.
The second, third and fourth letters make an animal.
The fourth, fifth, sixth, seventh and eighth letters make a weapon.
The first, second, third and fourth letters can be taken as an outcome of any exam.
The fifth, sixth, seventh and eighth letter combine to form a high end typing software.

Can you tell who am I ?

What is black when you buy it, red when you use it, and gray when you throw it away?