John was born on March 5, 1970, in Delhi, India. Jacob was born 25 days before John. The year when they took birth, Republic Day fell on Monday.

Can you find out on what day was Jacob born?

What is the next number in this series?

4,12,84,3612....

When is the top of a mountain similar to a savings account?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

It spends most of its day eating white, but when it’s quick enough, it gets to eat fruit and sometimes some blue things. It’s in a dark room, where the walls are blue, it runs from a ghost that roams the halls and haunts it all the time. What is it?

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

I can write cow in 13 letters.

Can You?

By using 'because' continuously three times, can you make an English statement ?

There are people and strange monkeys on this island, and you can not tell who is who (Edit: until you understand what they said - see below). They speak either only the truth or only lies.
Who are the following two guys?
A: B is a lying monkey. I am human.
B: A is telling the truth.

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

What is it?