I am the largest in my family of fifty.
The youngest of our family lives separately from the rest of the family and so do I.
I am regarded as harsh and tough.
I am so large, you cut me in two equal halves,
each half would still be larger than the second largest member of the family.
Who am I?

A man is trapped in a room. The room has only two possible exits doors. Through the first door there is a room constructed from magnifying glass. The blazing hot sun instantly fries anything or anyone that enters. Through the second door there is a fire-breathing dragon. How does the man escape?

Alpha is Beta's sister.

Gamma is a Beta mother.

Delta is Gamma's father.

Tango is Delta's mother.

Then,

How is Alpha related to Delta?

What can you deduce from the following BrainBat?

CRY
LMKI

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

He digs out tiny caves and stores gold and silver in them. He also built bridges of silver and made crowns of gold. They are the smallest you could imagine. Sooner or later everybody needs his help, yet many people are afraid to let him help them. Who is he?

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

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

What word is represented by this rebus?

How is a fly different from a mosquito?