Who is generally closer to the kids, mom or dad?

(it's a funny riddle)

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

A network of 20 x 10 squares is given to you.

Can you calculate how many unique squares and rectangles can be formed combining two or more individual squares ?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

There are three boxes which are labeled as Rs100, Rs150, and Rs200. One box contains two notes of Rs. 50. The second box contains one note of Rs50 and one note of Rs100 The third box contains two Rs. 100 notes. All boxes are labeled incorrectly.

What is the minimum number of boxes you must check in order to label all boxes correctly?

Some friends went on a vacation to a resort. It was raining heavily and it kept raining for thirteen days.

When it rained in the morning, the afternoon was beautiful and when it rained in the afternoon, the day was blessed with a clear morning.

Overall, the friends experienced eleven nice mornings and twelve nice afternoons. Can you find out the number of days they spent on vacation?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

What does this rebus mean?

O
N
C
E
TIME

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?