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

How do you go from 98 to 720 using just one letter?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

In a rainy season, one day 3 huge ladies walked under a normal-sized umbrella.
The umbrella is not huge enough to accommodate all 3 ladies yet not a single lady got wet. Why?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

What is the value of 1/2 of 2/3 of 3/4 of 4/5 of 5/6 of 6/7 of 7/8 of 8/9 of 9/10 of 1000?

What does below Rebus say?

XLR8

What can you hold in your right hand, but never in your left hand?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?