Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

Why is the Hole below a Lock?

What begins with T, ends with T, and has T in it?

Solve below popular number sequence
314 159 265 358 979 323 846 ?

If six children and two dogs were under an umbrella, how come none of them got wet?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

John: "Hi Teacher, What is your favourite movie ?".
Chemistry Teacher: "Indium Cerium Platinum Iodine Oxygen Nitrogen".
Ten seconds later... John replied I got it.

Do you?

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 ?

I can be cracked, made, told, and played. What am I?

There's a day, that comes around once a year.
To celebrate the man, you hold dear.
He gave you life, love and will pick you up if you fall.
When it comes to guys like him, He's the best of all.
Who is he?