When my father was 31 I was 8. Now he is twice as old as me. How old am I?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

All Marigolds are flowers.
Few Flowers are used to make colors.
Therefore, some Marigold are used to make colors.

True Or False?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

There’s a girl who has a large family. She has an equal amount of brothers and sisters, but each brother only has half as many brothers and sisters. What’s the correct amount of brothers and sisters?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

At a party, there are five people and a whole round cake lying at the centre of the table. Only four people will make a cut and take their piece and the last one will get the remaining piece on the table. How can they make sure that everyone gets a 1/5th of the piece?

A doctor and a boy were fishing. The boy was the doctor’s son, but the doctor was not the boy’s father. Who was the doctor?

In the picture given below, can you find out which digit will take place of the question mark?