During which month do people sleep the least?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

0 0 0 = 6
1 1 1 = 6
2 2 2 = 6
3 3 3 = 6
4 4 4 = 6
5 5 5 = 6
6 6 6 = 6
7 7 7 = 6
8 8 8 = 6
9 9 9 = 6

You can use any mathematical symbols in the space provided to make all above algebraic expressions true.

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

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?

With the help clues provided in the image, can you find the 5 digit key?

Can you identify the hidden rebus in the image below?

In a mathematical quiz, you are asked the following question:

Use three 9s in a mathematical expression without dividing or multiplying to form the number one.

Can you answer the question?

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

A girl says this to her best friend: “I was born in 1955, and I celebrated my 17th birthday last weekend.” Her best friend thinks she’s lying, but she’s actually correct. How is that possible?