Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

Can you find the ages of a son, father and grandfather based on the following facts?
The sum of the ages of grandfather, father and son is 140 years.
The age of the son in months is the same as the grandfather in years.
The age of the son in days is the same as the father in weeks.

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

In an Art Gallary, When the clock hit 11 am, Artist hung the painting number 30. When it struck 4 pm, he hung painting number 240 and when it struck 7:30 pm, he hung painting number 315.

Can you determine, which painting number will he hang when the time is 9:20 pm?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

Which is faster, Heat or Cold ? Explain.

What Time Should the last watch show in the below figure?

Where do fish keep their money?

Find the smallest sentence with all the English alphabet.

I cannot talk, but I always reply when spoken to. What am I?