How many times in a given day, minutes and hour clock comes in a straight line ?

In the following picture, E is going to slide the object down and as per the terrain and the physics, the round object is going to travel all the way till the end. Now, can you analyze who all people will die when it happens?

After teaching his class all about Roman numerals (X = 10, IX=9 and so on) the teacher asked his class to draw a single continuous line and turn IX into 6. The teacher's only stipulation was that the pen could not be lifted from the paper until the line was complete.

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

In the four images below, can you find the odd one out?

If I put in one bird per cage, I have one bird too many. If I put in two bird per cage, I have one cage too many. How many cages and birds do I have?

You can hear me, but you can't touch or see me.

What am I?

A network of 20 x 10 squares is given to you.

Can you calculate how many unique squares and rectangles can be formed combining two or more individual squares ?

Find the next number in the sequence

5 12 24 36 ?