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

Two trains start at the same time, one from Bangalore to Mysore and the other from Mysore to Bangalore. if they arrive at their destinations one hour and four hours respectively after passing one another, how much faster is one train running than the other?

Why is 6 afraid of 7?

Can you solve the equation by finding the value of
A) Horse
B) Cowboy boot
C) Horseshoe

In the Picture?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

Which number comes next in the number series?

2, 9, 30, 93, ?

What occurs twice in a week, once in a year but never in a day?

I am first found in caves, now prolific online; I am a depiction, a drawing, a symbol, or sign. I will convey whichever mood you could wish; or for that matter, a fist, flask, or fish. What am I?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

If you drop a 15 kg iron bar and a 5 kg bag of cotton from a height of 50 meters which will reach the ground first?