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?

An evil man kidnapped someone and made them take one of two pills. One was harmless, but the other was poisonous. Whichever pill the victim took, the kidnapper took the other one. The victim took their pill with water and died. The kidnapper survived. How did the kidnapper get the harmless pill?

What is the word or phrase?

Four men were in a boat on the lake. The boat turns over, and all four men sink to the bottom of the lake, yet not a single man got wet! Why?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

If two fifty-foot ropes are suspended from a forty-foot ceiling that is twenty feet apart, how much rope will you be able to steal if you have a knife?

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

which number am I?

I have teeth but i don't bite. Who Am I ?

What demands an answer, but asks no questions

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?