What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

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

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

On a beautiful Sunday morning, You ordered a hot tea to your hotel room and suddenly you remember an important thing that needed to be done right now will take around 3 minutes to complete.
Like most people you like your tea to be hot while drinking so, when should you pour cream in the tea?
1. straight away
2. Just people, you drink the team
3. Its does not matter

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

Below is the sum of symbols in each row and column in the figure. Analyzing the figure, can you find out the value of the symbols?

You can see it everyday, But cannot touch it at will. What is it?

Rearrange the letters in "new door" to make one word.

You are mixing a mixture of cement and Sand with five gallons of water. You have a garden hose giving you all the water you need. The problem is that you only have a four-gallon bucket and a seven-gallon bucket and neither has graduation marks. Find a method to measure five gallons.