Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

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?

Which is Odd One Out and why?

4377

3954

9862

8454

9831

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

Sherlock Holmes was challenged to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?

At the local model boat club, four friends were talking about their boats.

There were a total of eight boats, two in each colour, red, green, blue and yellow. Each friend owned two boats. No friend had two boats of the same colour.

Alan didn't have a yellow boat. Brian didn't have a red boat but did have a green one. One of the friends had a yellow boat and a blue boat and another friend had a green boat and a blue boat. Charles had a yellow boat. Darren had a blue boat, but didn't have a green one.

Can you work out which friend had which coloured boats?

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

I am under you when I am whole.
I shift above you if you remove the first letter.
I come all around you if you remove the second as well.

Can you tell me who I am?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

How many times do a clock's hands overlap in a day ?