How many words can a pen with half refill write?

Count the number of triangles in the picture below:

What word begins and ends with an E, but has only one letter?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

Using mathematical symbols like +, -, and x in order to make the equations correct. Replace # with the above-given symbols.

9 # 8 # 7 # 6 # 5 # 4 = 91

What has one eye, but can’t see?

500 women soldiers are arranged in an array of ten rows and fifty columns in accordance with their respective heights. Now, the tallest woman from each row is asked to move out in the front. From them, the shortest one is labelled as Alpha. They are then asked to resume their original position.

Now, the shortest woman in each column is asked to come out in front. The tallest among them is labelled as Beta.

Can you find out if Alpha will be taller or Beta?

Can you start the fire using two pieces of wood?

What is the difference between a jeweller and a jailer?

I start and end with 500 and carry a 5 in my heart. But I require the first letter and the first number to be complete. I am the name of a King.

Who am I ?