In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

Count the number of triangles in the below picture?

I add 5 to 9 and get 2. The answer is correct, so what am I?

Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.

Check out the number list below and find what number comes next in the sequence.

111 , 113 , 117 , 119 , 123 , 137 , ?

What 5-letter word typed in all capital letters can be read the same upside down?

Can you make a six-letter word using the letters N, A and B ?

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

A time long back, there lived a king who ruled the great kingdom of Trojan House. As a part of the renovation of the kingdom to meet future security needs, he asked his chief architect to lay down a new play in a manner that all of his 10 castles are connected through five straight walls and each wall must connect four castles together. He also asked the architect that at least one of his castles should be protected with walls. The architect could not come up with any solution that served all of King's choices, but he suggested the best plan that you can see in the picture below. Can you find a better solution to serve the king's demand?