How many words can a pen with half refill write?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

Can you solve this tricky maths equation problem by replacing it? mark with the correct symbol?

19834 -----: 187
15921 -----: 153
17561 -----: 139
13734 -----: ???

Count the number of triangles in the picture below:

If,

A = 1

B = 2

C = 3

...

...

Z = 26.

Based on above rule, you need to find an eleven letter word whose letter sum is equal to 52.

I can write cow in 13 letters.

Can You?

Can you solve the photo plexer logic ?

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.

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?