I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

Who always enjoys poor health?

You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

The peacock is a bird that does not lay eggs. How do they get baby peacocks?

John and Jacob are twin brothers. One of them is a liar whereas the other one is a truth-teller.

I called their home number and one of them picked up.
I asked. 'Does John lie?' The person replied with a yes.

Whom did I talk with, John or Jacob?

10+10 and 11+11 can give you the same answer.

Explain how?

A man always keeps a spare tyre in his car. To make full use of all the five tyres, he changes the tyres in a manner that for a distance of 1, 00,000 km, each of them runs the same distance.

Can you calculate the distance travelled by each tyre on that journey?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

Name the three-letter word that can complete the below words:

A) L O _ _ _ E
B) E D U _ _ _ E
C) _ _ _ E R
D) _ _ _ T L E

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?